Identify the underlined clause as an adjective clause, adverb clause, noun clause, or none of the above. How you behave at school can affect your grades.
А
Adjective Clause
B
Adverb Clause
С
Noun Clause
D
None of the above

adverb clause

Explanation:

i think  adverb because adverbs are actions :3

i don't see any questions on your profile, currently, but i'd be happy to try and with any problems that you have, so long as i understand the problem myself.