Fact 1: Alight bulb is used for seeing in the dark. Fact 2: An electric light bulb is a light source. Given the two facts above, a what is used for seeing in the dark?
Choose your answer from:
(A). darkness source;
(B). our nearest star;
(C). light source;
(D). shade source;
(E). energy barrier;
(F). energy;
(G). photons;
(H). blackout curtain;
Answer:
(C).