Answer: I think the answer is B.
Explanation:
because everyone is a subject and sing is a verb
“I believe a longer spring break will help students perform better in school. After a week away from their studies, students will be refreshed and able to concentrate until the end of the school year”
This states your stance and reasoning.
Third person point of view always includes the pronouns and tenses "she, he, they" to describe a character's actions. In the examples above, two use first person ("I" pronoun). The answer would be C. "He was finally free, but there was no joy in his heart," because of the use of he/his in place of I/you.