Topic: Interjection,

Best Answer Explained in Below-:

In the sentence "Either of the girls will be awarded," the word "either" functions as a pronoun. Pronouns are words that replace nouns in a sentence to avoid repetition and simplify communication. In this context, "either" refers to one of the two girls without specifying which one.

When used as a pronoun, "either" can imply a choice or selection between two distinct options, in this case, the two girls. If we were to rephrase the sentence using a noun, it would read something like "One of the girls will be awarded," where "one" replaces the need to specify either girl directly.

The other options are not suitable here: "adjective" would suggest it describes a noun (e.g., "Either option is good"), "adverb" modifies a verb, adjective, or other adverbs (e.g., "She runs either quickly or slowly"), and "noun" would name a person, place, thing, or idea, which "either" does not do in this context. Thus, "either" clearly serves as a pronoun, making option D the correct choice.