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.

Can someone me answer this english question

Write a sentence using a gerund phrase with a pronoun subject.

Match the author with the description a. ernest hemingway b. john steinbeck c. robert frost d. langston hughes (1) summers spent in pacific grove, california influenced the symbolism in his literature (2) his poetry includes simple, direct language. many are dramatic monologues written in free verse are about life on new england farms (3) the mood and tone of his literature is largely shaped by his experience as a soldier in world war 1 (4) his poetry and short stories include dialect and colloquialisms which gives his primarily african american characters distinctive voices