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").

[Q]: Riding a two wheeled human powered vehicle is good for the environment because (A) it runs without fuel (B) it helps people stay in shape (C) they are cheaper to maintain (D) they are more fun to drive
[A]: A


[Q]: Which event includes melting? (A) making ice (B) cooking in butter (C) cutting carrots (D) buttering bread
[A]: B


[Q]: A bear's fur and duck's feathers both help the animal survive by (A) providing water (B) providing food (C) providing warmth (D) providing oxygen
[A]:
C