A multiplant monopolist can produce her output in either of two plants. Having sold all of her output she discovers that the marginal cost in plant 1 is $30 while the marginal cost in plant 2 is $20. To maximize profits the firm will

A) produce more output in plant 1 and less in the plant 2.
B) do nothing until it acquires more information on revenues.
C) produce less output in plant 1 and more in plant 2.
D) produce less in both plants until marginal revenue is zero.
E) shut down plant 1 and only produce at plant 2 in the future.

C