The Van Allen Belt Is

The Van Allen belt is

A) a region of trapped charged particles in the Earth's magnetosphere
B) a region where the ultraviolet light from the Sun is blocked from getting further down
C) a region where industrial pollution has made a smoggy layer in the atmosphere
D) a zone of small orbiting meteorites high above the Earth, which fall down from time to time
E) a piece of clothing worn by astronomers after they get their PhD's
Section 8.2: Earth's Crust