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:
The size of eyes matter relevant to sight and sight ability, given that (A) elephants see better than ants (B) wolves see better than giraffe (C) people see better than dogs (D) dogs see better than cats

Ex Output:
A


Ex 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

Ex Output:
C


Ex Input:
sunlight is a heat source emitted from (A) a white dwarf star (B) our only yellow star (C) a nearby quasar star (D) a red giant star

Ex Output:

B