Answer:
C.
Step-by-step explanation:
Infinitives as Nouns
Remember that a noun is a person, place, or thing. When an infinitive is used as the subject or direct object in a sentence, it functions as a noun.
The sentence’s subject performs the verb, while the sentence’s direct object receives the verb.
Example 1:
I love to sleep.
In this sentence, the verb is “love.”
Who or what receives the action of being loved? The infinitive “to sleep.”
This makes “to sleep” the direct object of the sentence.
In this case, the infinitive functions as a noun that expresses an opinion. It could be replaced with a person, place, or thing, as in, “I love pizza.”
Help is a verb and she is "happy to help"