They ran up the hill in the heavy rain. let's label the parts oof the sentence
They-subject
ran-verb
ran up the hill-predicate
So they is being used as the subject
Answer:D
Explanation: because your mom was giving me that slurp slurp last might and i think she ate my semen :'()
As the name indicates helping verbs are the verbs that help the main verb of the sentence to convey their meaning more effectively or help the main verb to extend their meaning.
Some examples of helping verbs are: is, are, am, can, must, be..
In the given sentence, must is the helping verb, as it is helping our main verb "need" to do convey its function. Really is an adverb and is not a helping verb.
So the correct answer to this question is:
Option A. Must
