Aprefix is added to the beginning , middle or end of a word?

Janine studies to improve her math skills

Write 3 sentences about an animal of your choice

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)