Utility function of an individual is given by, U = Y,what is the Marginalutility derived from each of the two goods given that the price of good X is N$ 6 per unit, price of good Y is N$ 3 per unit and income is N$ 120?

Select one:

a.MUx = 15X-1/4Y1/4and MUy = 2X-1/4Y1/4

b.MUx = 0.75X-1/4Y1/4and MUy = 0.25X3/4Y-3/4

c.MUx = 0.25X3/4Y1/4and MUy = 4 X-1/4Y1/4

d.MUx = 1.33X-1/4Y1/4and MUy = 4 X-1/4Y1/4