Answer:
D. society’s scarce resources are used to produce products that align with consumer preferences
Explanation:
Allocation efficiency is a point in the economy when the goods and services being produced are exactly what the customers or people of the economy want  and this is a point of production when marginal social benefit of producing the good is equal to the producers marginal cost.
 
        
             
        
        
        
Based on the inflation rate and the fact that it is rising, the right recommendation would be to A. raise the reserve ratio.
<h3 /><h3>How can you decrease inflation?</h3>
Inflation can be reduced when the reserve ratio is raised because it will reduce the amount of money that banks have to loan out.
This means that there will be less money in the economy which will reduce inflation because less money means less demand for goods and services.
Find out more on effects of inflation at brainly.com/question/27889691.
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Answer:
The gross profit method of inventory valuation is not valid when
c. the gross margin percentage changes significantly during the year.
Explanation:
Gross Profit Method:
It is such method that is used to determine the value of ending inventory in a specific period. 
- The option a, b and d are valid as this method is used when there is substantial increase in the quantity of inventory or in the cost of the inventory during the year. Moreover, it is also used to calculate the amount of ending inventory that is effected by a disaster such as fire, theft etc.
- The option c is not valid because it is not used when the gross margin percentage changes significantly during the year as gross profit method is only used to determine the amount of an ending inventory.
 
        
             
        
        
        
Answer:
A, B and D
Explanation:
Expanding the money supply is an exercise of expansionary monetary policy.
This decision will first allow our tech startup to acquire cheaper loans and expand our operations, this expansion in operations will result in new employment opportunities and hence as a result, unemployment will be reduced assuming this is a general trend in the economy. 
This decision also directly reflects an increased investment and hence the GDP on the whole and the investment part of GDP would both increase,
GDP = C + I + G + (X - M), where I = investment. 
This change in macro economy will increase aggregate demand due to expansionary effects. Increase in imports is not conclusive as it may or may not happen depending upon the demand state.
Hope this helps.