Which one among the following pairs is not correctly matched?

A) When total product increases at an increasing rate : Marginal product increases

B) When total product increases at a diminishing rate : Marginal product declines

C) When total product reaches its maximum : Marginal product becomes zero

D) When total product begins to decline : Marginal product becomes positive

Correct answer:
D) When total product begins to decline : Marginal product becomes positive



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