Explain the proper use of the comma to set apart nonessential elements within a sentence

These nonessential elements, which can be words, phrases, or clauses, are set off with commas. Rule: Use commas before and after nonessential words, phrases, and clauses, that is, elements embedded in the sentence that interrupt it without changing the essential meaning.

Explanation:

the correct answer is

the

third option. in the excerpt from "why equal pay is worth fighting

for" by senator elizabeth warren, she supports her point by noting:

"for middle-class families today, it usually takes two incomes to get by.”

warren supported barbara mikulski’s the paycheck fairness act to combat wage

discrimination, as it would to ensure “that salary differences have

something to do with the actual job that they are doing, and not just because

they are women”.