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").

Example Input: Fact1: Infancy is the period of most rapid growth after birth., Fact2: Development means to get better, growth means to get bigger., Question: What is the period of most rapidly getting bigger after birth? (A) 86400 (B) infancy (C) adult (D) a hosta (E) pregnancy (F) adulthood (G) eight (H) angiosperm
Example Output: B

Example 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
Example Output: E

Example Input: Fact1: a wildfire changes an ecosystem drastically, Fact2: An ecosystem is like a neighborhood in nature., Question: What does a wildfire change drastically?  (A) rapid changes occur (B) unicellular organisms (C) Fire (D) Rocks (E) A neighborhood in nature. (F) occurs over a wide range (G) Change (H) single cell microorganisms
Example Output:
E