What combination of x and y will provide a feasible solution and a minimum objective function value for the following problem?
Min Z = 3x + 15y
(1) 2x + 4y ? 12
(2) 5x + 2y ? 10
a. x = 6; y = 0
b. x = 5; y = 0
c. x = 0; y = 5
d. x = 4; y = 1
e. x = 0; y = 3