In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

[EX Q]: A source of heat may come from (A) a cold shower (B) holding hands (C) holding ice (D) Antartica
[EX A]: B

[EX Q]: In the 60's people watched on TV while for the first time people walked on (A) a high rooftop in a major city (B) a satellite without much air in our solar system (C) the edge of a cliff in the mountains (D) a beach in Brazil
[EX A]: B

[EX Q]: Which is likeliest to be true? (A) octopuses are found in the jungle (B) birds are found in the deep ocean waters (C) sheep are found high in the tree (D) seaweed is found in the shallow waters near the beach
[EX A]:
D