The Average Product of an input will fall in which of the following scenario?

all of the above

The correct answer is Option 4: all of the above

Average Product (AP) = Total Product (TP) / Quantity of Input
AP falls in the following scenarios:

1. When TP increases at a diminishing rate (Correct)

   • When TP is still increasing but at a slower rate, Marginal Product (MP) starts declining.
   • Since MP < AP, AP also begins to decline.

2. When TP is maximum and constant (Correct)

   • At the maximum point of TP, Marginal Product (MP) is zero.
   • Since MP < AP, AP starts to fall.

3. When TP decreases (Correct)

   • When TP declines, MP becomes negative, which pulls AP down further.

Since AP falls in all these scenarios, the correct choice is: