B, since none of the other answer choices seem correct.
Answer:
Primary sources provide raw information and first-hand evidence. ... A primary source gives you direct access to the subject of your research. Secondary sources provide second-hand information and commentary from other researchers. Examples include journal articles, reviews, and academic books
Explanation:
B.) change "have" to "has"
https://teachfieldsteach.weebly.com/uploads/2/2/3/6/22363588/immigrant_contribution_by_jfk.pdf
The answer is C.
SPACEEEEE
