Question

Before the bell rang, all the students were required to neaten up the areas around their desks.

Answer 1

I also say its to neaten up forgive me if its wrong

Answer 2

Answer:

C) Before the bell rang

Explanation:

The adverb clause in this sentence is "Before the bell rang" because it describes WHEN the students are required to neaten up the area around their desks. Adverb clauses tell WHEN something occurs.