If Output Is Produced According to Q = 4LK, the Price

Multiple Choice

If output is produced according to Q = 4LK, the price of K is $10, and the price of L is $40, then the cost minimizing cost minimizing combination of K and L capable of producing 64 units of output is

A) L = 16 and K = 1.
B) L = 2 and K = 8.
C) L = 2 and K = 2.
D) L = 32 and K = 32.
E) L= 1 and K = 16.