Suppose That U = U(P, M), Where P and M $\Delta$

Multiple Choice

Suppose that U = U(P, M) , where P and M are peanuts and marshmallows. The marginal utility of marshmallows, MU_M, is given by:

A) P + M.
B) P/M.
C) $\Delta$ U(P, M) / $\Delta$ M.
D) $\Delta$ U(P, M) × $\Delta$ M.