Essentials of Economics 7th Edition by Gregory Mankiw

تمرين 5

Diminishing marginal product explains why, as a firm's output increases,
A) the production function and total-cost curve both get steeper.
B) the production function and total-cost curve both get flatter.
C) the production function gets steeper, while the total-cost curve gets flatter.
D) the production function gets flatter, while the total-cost curve gets steeper.