Choose the adjective that best describes the italicized word.

The student carefully researched his objection and corrected the teacher the next day in class.

A. malicious

B. young

C. inquisitive

D. short-haired

I suppose the italicized word is student, so the answer should be C. inquisitive. Based from the ideas presented in the sentence, the student must be inquisitive by being concerned to the answer of the topic the teacher shared that he had to find the exact details and even explanations as necessary.