Choose the selection in which the sentence is properly punctuated.


A) NO CHANGE

B) The writer works rapidly when he feels inspired, but he suffers terrible periods of drought, when inspiration won't come.

C) The writer works rapidly when he feels inspired, but he suffers terrible periods of drought when inspiration won't come.

D) The writer works rapidly, when he feels inspired, but he suffers terrible periods of drought when inspiration won't come.
Eliminate