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: Plants use cellulose for their cell walls., Fact2: Green bean plantings continue to be planted., Question: What do green beans use for their cell wall? (A) Energy (B) cellulite (C) cellular (D) cellolosis (E) cellulose (F) lmestone (G) layers of fat (H) heat energy

Ex Output:
E


Ex Input:
Fact1: Bottleneck effect occurs when a population suddenly gets much smaller., Fact2: Fishing pressure is relatively low due to a smaller human population., Question: What can make the bottleneck effect occur in fish? (A) increased habitat (B) acid rain (C) humans (D) Winter (E) increased food (F) storms (G) increased resources (H) Toxicity

Ex Output:
C


Ex Input:
Fact1: Most invertebrates have a nervous system., Fact2: Jellyfish and insects are invertebrates., Question: What has a nervous system? (A) Nerve tonic (B) Jellyfish (C) Air (D) fur seals (E) Cardiovascular system (F) animals (G) chickens (H) elephants

Ex Output:

B