Suppose That U(x,y) = Min(3x,y)

Suppose that U(x,y) = min(3x,y) . Further suppose that P_x = $5 per unit and P_y = $10 per unit and income is I = $105. For this consumer, the optimal basket to buy would be

A) (x,y) = (9,3)
B) (x,y) = (3,1)
C) (x,y) = (1,3)
D) (x,y) = (3,9)