-"come to a time when no one dared speak his mind"
this is the right answer because animal farm was based after Soviet Russia which burdened the citizens because they could not express themselves because every aspect of life in a communist country is under government rule.
Putting something together to form a new thing
A: child-children because B is noun-possesive noun C is noun-verb and D is wrong because the plural version of sheep is sheep(there are a few other exceptions along with it)
If something is a drawback it is disappointing or a set back.
example: the fact she broke the vase was a drawback
if something is a counterpoint it is an argument
example: I made my claim but he wanted to express his counterpoint