Sarah and Ashley giggled and whispered all night.
What type of sentence is this?

What is the directions for this work to be answered how would i know what type of sentence it is ?

D.) typed.

An adverb clause:
1) has a subject and verb
2) has a subordinate conjuction
3) answers one of the four questions: how? when? where? or why?

In the above sentence, the adverb clause is : AFTER I WROTE A ROUGH DRAFT.

1) subject - I ; verb - wrote
2) subordinate conjunction - after
3) when did I type? after I wrote a rough draft

The adverb clause modifies the verb "typed."