Delete the redundant and irrelevant information to make a clearer sentence. At 9PM this evening, which is the same time I was born, I have to meet with my group on a video call.

Delete "which is the same time I was born,"

Explanation:

This part of the statement holds no relevance to the sentence. Usually, when there are 2 commas surrounding a statement, it indicates that there's extra information.

themselves

an intensive pronoun is a pronoun that ends in self or selves, such as himself, herself, themselves, yourself, ourselves. since band members is a third person plural, the correct intensive pronoun would be themselves. if the band was talked about as a collective noun, itself would be the appropriate intensive pronoun. intensive pronouns are used to add emphasis to the noun it's modifying which is why it directly follows it.

answer: a

explanation: