Electromagnetic waves are transverse in nature. This is evident from the fact that they can be:

Solution

1. Electromagnetic waves consist of oscillating electric and magnetic fields perpendicular to the direction of propagation.
2. Polarization is a phenomenon where the oscillations of a wave are restricted to a single plane.
3. This phenomenon occurs exclusively for transverse waves, as longitudinal waves cannot be polarized.
4. Since electromagnetic waves exhibit polarization, they must be transverse in nature.
5. Hence the answer is (C).