In an Electromagnetic Wave in Free Space, the Electric and Magnetic

Multiple Choice

In an electromagnetic wave in free space, the electric and magnetic fields are

A) perpendicular to one another and parallel to the direction of wave propagation.
B) perpendicular to one another and perpendicular to the direction of wave propagation.
C) parallel to one another and perpendicular to the direction of wave propagation.
D) parallel to one another and parallel to the direction of wave propagation.