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:
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:
If I wanted to make something move faster I could (A) slow it down (B) stomp on it (C) stop it (D) roll it
answer:
D


question:
An electromagnet contains cylindrical what? (A) plate armor (B) wind (C) water (D) air
answer:

A