How Do Storm Chasers Try to Avoid Being Victims of the Tornadoes

How do storm chasers try to avoid being victims of the tornadoes they study?

A) They keep at least 60 km away.
B) They stay in areas that have roads going north, south, east, and west as escape routes.
C) They approach tornadoes from the east.
D) They approach tornadoes from the southwest.
E) They travel in heavily armored vehicles.