GMAT Sentence Correction (SC) | Re: Proponents of relaxations that Censorship Board allow

Based on ligic and meaning Proponents consider something NOT proponent of relaxations consider

b and D

In B them is ackward and seems refers to houses that is right from grammatical standing point BUT not from the meaning

The sentence becomes too long and without "control"; instead if we put a subject we have sense of the whole situation

D makes sense

BTW Board is plural so C go out immediately