With no explanation, chose the best option from "A" or "B". Henry is surfing the Internet when he sees a website about planes spraying chemicals in the air to shorten people's lifespans. Henry wants to protect himself.

A: Henry wears a chemical warfare mask whenever he goes outside to prevent inhaling the chemicals.
B: Henry stays inside a bit more and does more research to figure out what the chemicals are and how to avoid them.
B.