For the Firm Mentioned in Question 68,if the Marginal Product

Multiple Choice

For the firm mentioned in question 68,if the marginal product of B changes to 20,the firm should

A) increase the amount of B relative to A.
B) decrease the amount of B relative to A.
C) leave the relative amounts of A and B unchanged.
D) increase both A and B but leave the relative proportions of each unchanged.
E) decrease both A and B but leave the relative proportions of each unchanged.