Which words in the sentence are the adverb clause?

After we collected signatures, the committee presented the petition to the chairperson.

A.
to the chairperson

B.
the committee presented the petition

C.
After we collected signatures

Help!

Question

Which words in the sentence are the adverb clause? 

After we collected signatures, the committee presented the petition to the chairperson.
 
 A.
to the chairperson
 
 B.
the committee presented the petition
 
 C.
After we collected signatures

Help!

anonymous · Answer

@esshotwired

esshotwired · Answer

I believe the adverb clause in this sentence would be C because it answers the question 'when'

anonymous · Answer

That's what i was gonna guess, Thanks so much!

esshotwired · Answer

You're welcome!