In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Ex Input:
Fact1: All cells share some of the same structures and basic functions., Fact2: Inside the cell is a structure called the nucleus., Question: All nucleus share the same basic what (A) size (B) rays or beams (C) species (D) Joules (E) location (F) allow growth (G) functions (H) spectrum

Ex Output:
G

Ex Input:
Fact1: if a living thing becomes too cold then that living thing will die, Fact2: Plants are also the oldest living things., Question: what dies if it becomes too cold? (A) plants (B) starfish (C) trout (D) planets (E) trees (F) ice (G) bears (H) clouds

Ex Output:
A

Ex Input:
Fact1: Bile reduces the acidity of food entering from the highly acidic stomach., Fact2: Bile, produced by the liver, helps fat digestion and absorption., Question: what organ helps reduce the acidity of food? (A) saliva (B) enzymes (C) mucus (D) peptic acid (E) osculum (F) lungs (G) liver (H) skin

Ex Output:
G