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: a mirror is used for reflecting light, Fact2: Light seems to travel in rays or beams., Question: what can a mirror be used to reflect? (A) noble gases (B) air particles (C) glass (D) focusing a lens (E) rays or beams (F) photons (G) sun's heat (H) an electron lens

Ex Output:
E


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: Differentiation is the process by which unspecialized cells become specialized., Fact2: Neurones are highly specialized cells., Question: What is the process by which neurons are created? (A) heated by the sun (B) communication (C) graduating (D) photosynthesis (E) Laboratory (F) Seconds and minutes (G) differentiation (H) melanin content

Ex Output:

G