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:
If someone wants to use a natural gas in order to assist something necessary, they can (A) use it to bathe in (B) eat it to die quickly (C) freeze it to make ice cubes (D) ignite it to warm their body
answer:
D


question:
What does a tuna have that causes it to swim faster than a seahorse? (A) Lower body temperature (B) Bigger scales (C) Bigger fins (D) Thicker caudal fin
answer:
C


question:
If a species population increases in the birth rate has (A) ceased (B) boomed (C) stalled (D) fallen
answer:

B