Answer:
Perpendicular to the polarization
Explanation:
In this question, we are interested in selecting the option that best complete the question.
The direction of propagation of light is perpendicular to the polarization. Polarized and unpolarized light behave in different manners.
In unpolarized light, the oscillation of the magnetic and electric occurs in all directions to the propagated light.
However, in the case of polarized light, there is a restriction of the electric field oscillation. And thus, it only oscillates in a direction which is perpendicular to the propagation light