Theaters have spot lights that are covered with red, blue, and green cellophane plastic. Why is this so?
a.The only available colors of cellophane plastic are red, blue and green.

b. Red, blue, and green are additive colors so a combination of these will highlight an actor’s presentation.

c .Red, blue, and green are bright colors that will put emphasis on an actor’s presentation.

d.The colors can be easily obtained from the store and the bulbs can be replaced if busted.