Can somebody me with this! which answer is it and can you explain it

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.

"the sandy walls seemed to collapse in on themselves"

and

"the bloodshot waters seemed to have no bottom"