Which sentence correctly uses a comma to separate an introductory subordinate clause?

visitors marvelled at the beauty created by fifty american painters and sculptors, when the great hall opened in 1897. when the great hall opened in 1897, visitors marvelled at the beauty created by fifty american painters and sculptors. opened in 1897, visitors marvelled at the beauty created by fifty american painters and sculptors in the great hall. in the great hall, visitors marvelled at the beauty created by fifty american painters and sculptors in 1897.

When the Great Hall opened in 1897, visitors marvelled at the beauty created by fifty American painters and sculptors.

An introductory subordinate clause is found at the beginning of a sentence, uses a subordinate conjunction, contains a subject and verb, and is dependent on the rest of the sentence. The subordinate conjunction in this clause is "when". It joins the opening of the Great Hall with the visitors reaction. The subject of the subordinate clause is Great Hall, and the verb is opened. In the other options, the subject, verb, or subordinate conjunction is missing.

it can be many reasons such as they could want they're family to live and explore more two. might just want to be nice.

3.some say for the greater good or future.

4. they might want to have they're baby,kid,family explore more. people just sacrifice.

true fact:

someone is sacrificed everyday.

the difference of the poems of walt whitman and emily dickinson is that whitman uses personification, whereas dickinson avoids figurative language. whitman incorporates transcendentalism and realism in his works. on the other hand, dickinson's poems talks about death and immortality.