OPTIONS:
(I) chemical messengers;
(II) desire;
(III) heating liquids;
(IV) dreams;
(V) Sunlight and clouds;
(VI) colors of the spectrum;
(VII) Water and ice;
(VIII) Electrical energy;
Q: Fact 1: Sunlight and rain can cause a rainbow. Fact 2: Rain comes from clouds. Given the two facts above, what can cause a rainbow?
A:
(V)