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: Annelids have the amazing capacity to regrow segments that break off., Fact2: Earthworms Earthworms are in the phylum Annelids., Question: _ have the amazing capacity to regrow segments. (A) ferns (B) arachnids (C) roots (D) earthworms (E) anthropods (F) crustacean (G) loose soil (H) root growth

Ex Output:
D


Ex Input:
Fact1: Viruses are so small that they can be seen only with an electron microscope., Fact2: Electron microscope is developed in Germany., Question: viruses are so small that they can be seen only with a device developed where? (A) A computer (B) sunlight (C) Light (D) germany (E) retina (F) at home (G) canada (H) taiwan

Ex Output:
D


Ex Input:
Fact1: Antigens are molecules that the immune system recognizes as foreign to the body., Fact2: Antigens are proteins foreign to the body., Question: what are antigens? (A) animals (B) negative (C) positive (D) complex (E) proteins (F) PDAs (G) humans (H) parasites

Ex Output:

E