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: Populations of viruses do not grow through cell division because they are not cells., Fact2: Prokaryotes multiply by simple cell division, forming clones or exact copies of themselves., Question: What are viruses not? (A) self-copies (B) an object (C) HIV (D) humans (E) infectious (F) homogenous (G) dangerous (H) prokaryotes

Ex Output:
H

Ex Input:
Fact1: Flagella help prokaryotes move., Fact2: Flagella and cilia are similar in structure., Question: What helps movement? (A) stamina (B) fur (C) cilia (D) hair (E) kinetic (F) nerves (G) motors (H) elastic

Ex Output:
C

Ex Input:
Fact1: Carbon cycles quickly between organisms and the atmosphere., Fact2: Carbon dioxide is controlled by the carbon cycle., Question: what is controlled between organisms and the atmosphere? (A) carbon dioxide (B) sweating (C) temperature (D) air pressure (E) heat energy (F) Pollution (G) energy usage (H) Chemical energy

Ex Output:
A