Consider a firm that has production function f(L,K)= 3L2/3K1/3. What is the expression for this firm's Marginal Product of capital
a) MPK(L,K)= 3L2/3/K2/3.
b) MPK(L,K)= 2L2/3/K1/3.
c) MPK(L,K)= 3L2/3/K1/3.
d) MPK(L,K)= L1/3/K1/3.
e) MPK(L,K)= L2/3/K2/3.