Answer:
a. An increase in labor costs will increase the additional cost of producing another airplane.
Explanation:
Microeconomics is concerned with the individual markets in the economy. It is the study of small and individuals firms and businesses allocated resources. It takes into consideration of the actions taken by individual units.
Thus if the labor cost or wages of labor is increased, then according to the concept of microeconomics, it will increased the cost of the production of another airplane.
Thus the correct option is (a).
