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: Protozoa can be classified on the basis of how they move., Fact2: Paramecium are protozoa, single celled animals., Question: What can be classified on the basis of how they move? (A) each species (B) aquatic organisms (C) reptiles ancestral to mammals (D) single celled organisms (E) microbes and mussels (F) trailers and boats (G) How fast a vehicle is going (H) melanin content

Ex Output:
D


Ex Input:
Fact1: Cancer is a disease in which cells divide out of control., Fact2: Chemotherapy works on cells that are dividing., Question: What helps stop cells multiplying in cancer? (A) the skin (B) Honey (C) sweating (D) Chemotherapy (E) H2O (F) Chemical energy (G) Titanium (H) bioaerosols

Ex Output:
D


Ex Input:
Fact1: smell is used for finding food by some animals, Fact2: Olfaction is the sense of smell., Question: What is used for finding food by some animals? (A) metal detectors (B) telekinesis (C) olfaction (D) Earthworms (E) cooking (F) mussels (G) bamboo (H) heat energy

Ex Output:

C