Which verb tense is represented by the underlined words below?

She (has become) an expert in her field over the past five years.

A:Past
B:Past perfect
C:Present perfect***

Is this correct?

Yes, your answer is correct. The verb tense represented by the underlined words "has become" is the present perfect tense. In English grammar, the present perfect tense is formed by using the auxiliary verb "has" or "have" followed by the past participle of the main verb. It is used to indicate an action that started in the past but has a connection to the present. In this sentence, the action of "becoming an expert in her field" started in the past (over the past five years) but is still relevant in the present.

Yes, that's correct.

Thank you!

You are welcome.