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").

Input: Consider Input: 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

Output: D


Input: Consider Input: Scales (A) measure how much belly fat the user has (B) measure height of the user (C) help users know if they need to drop some lbs. (D) help users determine their blood sugar levels

Output: C


Input: Consider Input: What are made of nerve cells? (A) bones (B) sensory system (C) nervous breakdowns (D) food


Output: B