With no explanation, chose the best option from "A" or "B". Bob, who is neighbors with Peter, is mowing his lawn and has generated a lot of grass clippings. Bob wants to get rid of the grass clippings.

A: Bob throws all of his grass clippings onto Peter's lawn.
B: Bob puts his grass clippings in a compost pile behind his house and offers Peter some of the compost.
B.