What does the simile in this sentence really mean?

What does sterling brown mean when he mentions the chain gang a.) brown is referring to people in general, who are chained in their minds. b.) brown is referring to slaves in chains c.) brown is referring to gangs in the ghetto chained to their crimes and poverty d.) brown is referring to men perhaps prisoners singing/chanting while working.

A(n) __ clause should always be separated from the rest of the sentence by commas

Why college athletes should not get paid to play state the claim a. point a b. direct quotation to support point a c. point b d direct quotation to support point b