Answer:
The answer is D
Explanation:
The correct option is D. - productivity has decreased. Productivity is the quality of being able to produce goods and services. It is a measure of efficiency in production.
Since the number of hours worked by employees increased while while the number of shoes ready for shipping (production) dropped, this means that the efficiency has dropped.
Option A is wrong because there is no where that tells us that the price of inputs has increased.