Answer the following question: Fact 1: Aprism is used for refracting light. Fact 2: Light seems to travel in rays or beams. Given the two facts above, what is a prism used to refract?

Pick your answer from:
a). focusing a lens.
b). photons.
c). h2o.
d). glass.
e). oxygen.
f). rays or beams.
g). our nearest star.
h). an electron lens.
Answer:
f).