What is the best definition of act in a play

Which of the following best describes the setting of "marigolds"?

Third-person omniscient narrators are likely to be reliable because they're impersonal and know everything about the story they don't care enough about the characters to lie none of the above both "a" and "b"

Which statement best explains the function of the subtitlein this text? a. it provides additional information that narrows the focusof the text. b.it draws attention to important information in the table ofcontents. c.it introduces the various sections that appear withineach chapter. d.it explains the author's primary reason for writing aboutthis topic. correct (a)