Everybody in the Assembly shouted and there was a pandemonium in the hall.

Answer: Option C

Crowd : a large number of people gathered together in a disorganized or unruly way.
Noisy : making or given to making a lot of noise.
Disorderly : lacking organization; untidy.
Laughter : the action or sound of laughing.
Pandemonium : wild and noisy disorder or confusion; uproar.

Synonym of Pandemonium is Noisy