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 plants require water for survival, Fact2: Water contains hydrogen and oxygen., Question: What do plants require for their survival? (A) Light (B) Proteins (C) Energy. (D) salinity (E) hydrogen (F) nutrients (G) sunlight (H) food

Ex Output:
E

Ex Input:
Fact1: Prokaryotes are single-celled organisms that lack a nucleus., Fact2: Prokaryotes are usually microscopic and bacteria is an example of a prokaryote., Question: What are single celled organisms that do not have a nucleus? (A) Most plants (B) nucleus (C) ferns (D) fossil fuels (E) bushes (F) Eukaryotes (G) leech (H) bacteria

Ex Output:
H

Ex Input:
Fact1: looking at bright objects has a negative impact on the eyes, Fact2: Outside, the sun is bright., Question: Looking at the sun can have a negative impact on what body part? (A) the eyes (B) people (C) the hands (D) the skin (E) the nose (F) humans (G) Temperature (H) the ears

Ex Output:
A