2. The concept of diminishing marginal rate of substitution indicates that
(A) as the consumption of good X increases, individuals are willing to give up an increasing amount of goodY in order to obtain one more unit of good X.
(B) along an indifference curve, a consumer prefers the consumption combinations moving to the northwestalong the curve.
(C) as the consumption of good X increases, individuals are willing to give up a decreasing amount of goodY in order to obtain one more unit of good X.
(D) None of the above answers is correct.