Humpback whales, voyagers of the sea, live in oceans around the world. (A)it is a supporting detail. (B)it is a main idea. (C)it is a trivial detail. (D)it is a concluding idea.

supporting detail

Explanation:

youre welcome

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.

it the climax in the poem