What is the best definition of social norms

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)

Plz ! i genetic mutation occurs in a rabbits muscle cell this genetic mutation will be passed on to, a. the existing cells in the rabbits body. b. the cells that are next to the mutant muscle cell. c. cells that are produced when the mutant cell divides. d. the cells of the rabbits offspring.

Which lines in this excerpt from act b of shakespeare macbeth tell the audience that macbeth realizes his mistake and regrets his ambition