Sentence Correction

Despite an expensive publicity campaign, ticket sales for the new play were poor enough that it closed only after two weeks.
a poor enough that it closed only after two weeks
b poor enough that it was closed after only two weeks
c so poor that it closed only after two weeks
d so poor that it was closed after only two weeks
e so poor that only after two weeks it closed


OA i s D


Is it because "IT" is present across all options, we are not elimating options on the basis of PRONOUN ERROR

I have read on BTG that PRONOUN ERRORS are TOLERABLE to SOME EXTENT.. is this one such example.

I feel "IT" may refer to

campaign or NEW PLAY


Request some one to second this !!!

1. Prescence of "it" is doubtable...Its still a debate. I surmise "it" refers to campaign.

2.IMO the whole sentence revolves around usage of"only".

D rightly places "only" before "two weeks" modifying it promptly.

Any thoughts?