instruction:
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").
question:
Which are in opposition for similar chow? (A) cats and mice (B) dogs and sycamores (C) bears and salmon (D) lions and hyenas
answer:
D


question:
What is an example of protecting the environment? (A) flushing the toilet twice (B) using water flow limiter (C) driving shorter trips more often (D) using fancy, more expensive paper
answer:
B


question:
Life sustaining substances are required for (A) air (B) zebras (C) plastic (D) the sun
answer:

B