In terms of majors, business (attract) answer
the largest numbers – about 20% of the total international student population.

Attracts.

Explanation:

You are supposed to choose the tense of the verb attract and the best option would be present simple. This is because this is happening regularly - every year business is the most popular major among students, which is why present simple tense should be used. Since the word business is singular, you need to add -s to the verb to make it singular attracts.

The other forms would be is attracting (for present continuous), has attracted (for present perfect), and has been attracting (for present perfect continuous), all of which are wrong here.

major league baseball

explanation:

jack roosevelt robinson broke the color barrier in major league baseball.as he was the first african american to play in the major leagues, jackie robinson became the target of racial abuse. jackie robinson is referring to the historic event, harlem riot.

the autor of the text is bringing the point that one achievment of the president john f. kennedy was a success and this caused the next president to use a similar idea. the purposefor the use of the quotation in the text is to support the idea that peace corps was a result of the president's call. in this case, the quotation is presented as part of the writing and does not stand on its own.

answer a.