What steps best a reader determine the central idea

what are the options?

i taught my students how to divide decimal numbers today.

if he had known that it would've hurt, he wouldn't have said it.

the man had dug a hole earlier for his plant he wanted to grow.

the answer is b: overstatement.   overstatement is a literary technique used by writers to put emphasis on   a certain point, by describing or explaining something in a way that makes it seem more important or more serious than it really is. "crumbling", "for generations", "millions would flock", "profits woul soar" "the best principal ever" are some examples from the excerpt.