Answer
Choice B.
Work Step by Step
The first polarizer, with a vertical transmission axis, cuts the intensity of the unpolarized light in half. The transmitted light is vertically polarized.
We see that the second polarizer doesn’t affect the intensity of this light, so its transmission axis is also vertical.
The light emerging from the second polarizer is vertically polarized. The V cells of the insect respond, and the H cells do not.
