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A verb ending in -ing that is used as a noun is called a gerund.
1. A gerund is formed by adding -ing to a verb, turning it into a noun that represents an action or a process. For example, in the sentence "Swimming is my favorite activity," "swimming" is a gerund that functions as the subject of the sentence.
2. Gerunds can also act as the object of a sentence. For instance, in the sentence "I enjoy dancing," "dancing" is a gerund functioning as the object of the verb "enjoy."
3. It's important to remember that gerunds are not verbs but function as nouns in a sentence, taking on roles such as subjects, objects, or complements.
So, the correct answer to your question is:
A. gerund
I hope this helps clarify the concept for you. Let me know if you have any more questions!
