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: Chromosomes are coiled structures made of DNA and proteins., Fact2: DNA is deoxyribonucleic acid., Question: chromosomes are coiled structures made of proteins and what? (A) solid, liquid, gas (B) density (C) Something that causes allergies (D) deoxyribonucleic acid (E) It helps them survive (F) inheritance (G) blood cells (H) allow growth

Ex Output:
D

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: if an animal sweats then that animal 's bodily water decreases, Fact2: When animals sweat, evaporation of the sweat takes away body heat, thus cooling the animal., Question: how do organisms cool off? (A) down (B) shade (C) winter (D) water (E) sweat (F) cold (G) sleep (H) skin

Ex Output:
E