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: Energy is passed up a food chain or web from lower to higher trophic levels., Fact2: Plants represent the first trophic level., Question: What passes energy up the food chain to adult vegans? (A) cows (B) animals (C) Batteries. (D) chickens (E) Power companies. (F) glucose (G) Humans. (H) Plants.

Ex Output:
H


Ex Input:
Fact1: Centrioles are organelles involved in cell division., Fact2: Mitosis is cell division., Question: What are organelles involved in mitosis? (A) animals (B) Conifers (C) Most plants (D) it needs them (E) graptolites (F) fur seals (G) centrioles (H) sensory neurons

Ex Output:
G


Ex Input:
Fact1: Plants release oxygen during the day but not during the night., Fact2: Another kind of plant is the fishhook cactus., Question: What does the fishhook cactus release during the day but not during the night. (A) heat (B) Air (C) water (D) carbon monoxide (E) carbon dioxide (F) oxygen (G) Energy. (H) Energy

Ex Output:

F