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: oil is formed by layers of sediment pushing down on decomposing algae, Fact2: When the algae dies it is decomposed by bacteria., Question: Oil is formed by layers of sediment pushing down on what? (A) bacteria (B) nutrients (C) amoebae (D) tunicates (E) oysters (F) coral reefs (G) mussels (H) Bodily water

Ex Output:
A


Ex Input:
Fact1: Spores may be dispersed by moving water, wind, or other organisms., Fact2: Spores are a dormant form of bacteria., Question: A dormant form of what may be dispersed by moving water, wind or other organisms? (A) orchids (B) Flowers (C) seeds (D) pollen (E) bacteria (F) ferns (G) Chlorophyll (H) fungi

Ex Output:
E


Ex Input:
Fact1: Protozoa can be classified on the basis of how they move., Fact2: Cilia wave in a coordinated way to move the protozoa in one direction., Question: what move by waving? (A) humans (B) cilia (C) kids (D) algae (E) cells (F) people (G) plankton (H) weater

Ex Output:

B