Who wanna be more than friends im girl btw

Hyperbole in the book messenger by lois lowry

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)

Respond for free points because i don't have a question anymore.