The correct option is:  B.
The opportunity cost of providing 100 additional units of medical care would be 400 warheads.
<h3>What is opportunity cost?</h3>
According to microeconomic theory, an activity's opportunity cost is the value or advantage that would be lost if it were chosen over another that would provide a higher return on investment.
<h3>What is opportunity cost and example?</h3>
When economists speak of a resource's "opportunity cost," they are referring to the cost of the next-highest alternative usage of that resource.
For instance, if you spend time and money going to the movies, you are not allowed to read a book at home during that time or spend the money on anything else.
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I understand that the question you are looking for is:
Refer to the figure below. If this economy is currently producing at point C, then the opportunity cost of providing 100 additional units of medical care would be:
Select one:
a. 800 warheads.
b. 400 warheads.
c. 200 warheads.
d. 100 warheads.
 
        
             
        
        
        
A in the expected future exchange rate increases the demand for u.s. dollars. in the u.s. demand for imports does not change the demand for u.s. dollars.
In economics, demand is the number of goods that consumers are willing to purchase at various prices in a particular location and during a particular period of time. [1] The relationship between price and quantity demanded is also called the demand curve. Demand for a particular item is a function of perceived need, price, perceived quality, convenience, available alternatives, disposable income, buyer preferences, and many other options.
Demand refers to the consumer's willingness to buy and pay for goods and services without hesitation. Simply put, demand is the number of items that customers are willing to purchase at various prices over a period of time.
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A group of such computers - which get interconnected in order to share information or documents are usually called a computer network. 
This is a common type of networking when working in large companies or businesses.
        
             
        
        
        
That has share holders and a board of directors.