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:

The word "precursor" refers to something that comes before and is a necessary preparation for something else. In the sentence, algebra is a prior, required course that prepares students for calculus. "Preceding requirement" matches this meaning: it is a requirement that comes first and supports success in the subsequent course. The other options do not fit: "complex training" does not convey the prior/required nature, "brief introduction" is too shallow, and "predominant trait" is unrelated to course prerequisites.

Answer:

preceding requirement