detailed solution

Correct option is D

The correct option is D) ‘Herself’. The words that are used in place of a noun are pronouns.  The name of a person, place, animal, or item can be the noun that is replaced. Pronouns used to emphasize are known as emphatic or emphasising pronouns. For the given statement, ‘She ___ cleaned the house.’,  the pronoun ‘herself’ would act as a reflexive emphatic pronoun. In the other three options, the first two are not even pronouns and the third one is not emphatic in nature. Therefore, option (D) is the required answer.