Answer:
D
Explanation:
The subject is plural, and I don't know how to explain this correctly, but I think that's the answer because it makes the verb singular.
Yes it will stay the same. At least that's what I think
A light shinning in through a glass, or a car window, or a window! Make sure you add color to make it pop :) You could use a flashlight as well, or the light on a cellphone.