Except for Such Nuclear Processes as Nuclear Reactors, Nuclear Bombs

Multiple Choice

Except for such nuclear processes as nuclear reactors, nuclear bombs, and radioactivity, all of the common forces we see around us are due to just two underlying or "fundamental" forces. One of these two forces is the gravitational force. The other is

A) the color force.
B) the chemical force.
C) contact forces.
D) the frictional force.
E) the electromagnetic force.