Which aspect of a text is lease likely to contribute to its theme?

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)

May someone me with these questions

Create an accurate summary of the “goodbye” scene between marylin and her brother in “the cold equations”