The producers are closing Meet Pauline, the first Broadway musical that had been written by a large group of composers and the inspiration for a plethora of similar works that crowded Broadway for years after.

(A) that had been written by a large group of composers and
(B) written by a large group of composers and which was
(C) to be written by a large group of composers and which was
(D) written by a large group of composers and
(E) to have been written by a large group of composers and was

OA D

Source: Manhattan Prep