Answer:
E. Cluster
Explanation:
Cluster sampling is a type of sampling method in which the population under study is divided into different groups known as clusters before simple random samples are selected from each population clusters. The analysis of such population is carried out based on the sampled clusters. 
This method is adopted when a researcher does not have access to the whole population under research. 
Advantages of cluster sampling. 
The research method only needs fewer resources.
The sample under review is feasible. 
Note: Cluster sampling is not as accurate as simple or stratified random sampling. 
 
        
                    
             
        
        
        
When you don't know a certain answer to a customer question be honest and tell them that you don't know the answer to this question however you will ask from your colleague about this question and will revert back to the customer.
<h3>What is a customer?</h3>
A customer is a person who is a buyer or a potential buyer of your products and or services.
The customer should be communicated of the estimated time that will be taken to revert back with the correct answer to the question. It is highly recommended that no guesses are made when you don't know a certain answer.
Learn more about Customer at brainly.com/question/27197965
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Answer: 4. a consumer electronics company popular among price-conscious customers.
Explanation: Companies who thread a cost-leadership strategy or path could be said to be 'price-centric', that is gives price huge cognizance and will strive to be a market or industry leader when it comes to giving best and most affordable prices on products. 
Thus, since Airbase follows a cost leadership strategy and also popular among consumers for its affordable devices, it should also weigh or compare it's strategy to other consumer electronics company which is popular among consumers which gives cognizance to price of products they purchase. 
 
        
             
        
        
        
Answer:
C. A country can specialize in producing that for which it has a comparative advantage and then trade for other needed goods and services.
Explanation:
<em>Comparative advantage</em> is simply evaluating the opportunity cost of other benefits or costs, if the country is opting to choose for a specific category of goods for production purposes. 
For example, let's say US can produce 20 Television (TV) sets and 50 Air Conditioners in a month. Here, the opportunity cost of producing 1 TV set is 50/20 i.e. 2.5 Air Conditioners. Similarly, the opportunity cost of producing 1 Air Conditioner (AC) is 20/50 i.e. 0.4 TV set. Hence, US should produce Air Conditioners over TV sets as per <em>Comparative Advantage</em> concept.
Take another example, let's say UK can produce 50 Television (TV) sets and 20 Air Conditioners in a month. Hence, the opportunity cost of producing 1 TV set is 20/50 i.e. 0.4 Air Conditioner. On the other hand, the opportunity cost of producing 1 AC is 50/20 i.e. 2.5 TV sets. Thus, UK should produce TV sets over AC's as per <em>Comparative Advantage </em>model.
Hence, US should export AC's to UK and import TV sets from UK to gain from specialization and trade.
<em> In this way nations can gain from specialization and trade by making use of Comparative Advantage theory</em>.
It is to be noted that <em>Absolute Advantage model </em>of Adam Smith is also good as it highlights production of that good by a country, which it can produce in large quantities with fewer resources and minimal time than any other nation in the world. But the <em>Comparative Advantage Model </em>developed by David Ricardo considers opportunity cost and is much more refined than Absolute Advantage Model.
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Answer:
A. is any series of firms or individuals who participate in the flow of goods and services from producer to consumer or final user.
Explanation: