No comma needed
The game was delayed because the field was wet.
A. Two kittens tumbled over the shoes as they played.
Move the story forward. sorry if incorrect
Adverb clauses function as adverbs and answer such questions as : when, where, why, under what conditions. They modify verbs, adverb, and adjectives. They also have to begin with a subordinating conjunction as well as contain a subject and a predicate.
Mrs. Sanchez -- subject
will help -- verb
if you ask-- adverb clause modifying the verb " will help " answering the question : under what condition.