Question

read the sentence. algebra is a precursor for calculus because it will help students to be successful in the latter course. which word is closest in meaning to the underlined word? complex training preceding requirement brief introduction predominant trait

Explanation:

"Preceding requirement" implies something that comes before and is needed as a foundation, which is similar to a precursor. Other options like "predominant trait", "brief introduction", and "complex training" do not convey the idea of a necessary prior - element as closely.

Answer:

C. preceding requirement