Respuesta :
The answer to your question would be that the principal part of the verb that is used in the following sentence is the following one: Present. That is, the correct option would be A.
Every verb has four basic forms, also known as principal parts. To form all the tenses of each verb, you should learn these four principal parts: the present tense, the present participle, the past tense, and the past participle. In this case, the verb "to do" is used in the present tense.
