The action of a play is generally confined to a "world" of its own—that is, to a fictional universe that contains all the characters and events of the play—and none of the characters or actions moves outside the orbit of that world. this is an example of limited time.

What role do background vocalists play? a. they provide additional support to the main vocalist and other members of a music group during recording sessions and live events. b. they perform as part of orchestras working for music theaters. c. they mix different songs or music scores and present a unique blend of music to an audience. d. they assemble and organize musical compositions according to their clients’ requirements.