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").

Ex Input:
Adding salt to liquid decreases what? (A) light (B) energy (C) magnetism (D) thawing temp

Ex Output:
D


Ex Input:
A lizard that passed away centuries ago may be viewed most easily today in some ways through (A) globes (B) mirrors (C) telescopes (D) sediment

Ex Output:
D


Ex Input:
If a plant is being nourished throughout all of itself, the reason is most likely (A) plastic tubes (B) internal tubes (C) interior walls (D) metal tubes

Ex Output:

B