How Did Carl Anderson's Cloud Chamber Apparatus Differ from the Ones

Multiple Choice

How did Carl Anderson's cloud chamber apparatus differ from the ones that preceded it?

A) Anderson's cloud chamber detected cosmic rays.
B) Ionized particles were blocked from Anderson's cloud chamber.
C) Vibrations from celestial movements were filtered from the Anderson apparatus.
D) Anderson used magnets, which detected antimatter.
E) Anderson's device was the first to incorporate electron microscopes in the design.