Pls help me I need to get this answer right

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)

What is the meaning of 'aesthetic'?

To confirm you understand the article of la rinconada write a summary