How do you polarize light to align the light that passes through while without blocking all of the light?

The correct answer should be b let me know if i’m wrong

Idon't get it? what do you mean by playing 17 hours on the wii

Gravity, from the center of mass of the box, extending downward normal force, from the floor under the box, extending upward, equal to gravity push force, acting at a point on the box, extending in the direction of motion friction, acting at any point on the box directly opposite the push, extending directly opposite to the motion