Foolish, hopefully this helps.
Answer:
I think b no is the answer.
answer:
however, it is true that some
students use social media to improve in school by
talking about classes, homework, and other educational
topics
The last one. The only scenario where you wouldn't put a comma in the first quote is if it's a completed remark that uses particular punctuation such as a quotation or exclamation mark, but never a period. Hope this helped.
