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").

Input: Consider Input: Fact1: if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past, Fact2: Marine fossils found in the interior of the continent., Question: Why are marine fossils in the interior of a continent? (A) erosion from rivers (B) It used to be covered by water (C) They evolved to be land animal (D) basic building blocks of life (E) They washed ashore (F) the wearing away of rock (G) Land animals ate them (H) units of heredity

Output: B

Input: Consider Input: Fact1: Antigens are molecules that the immune system recognizes as foreign to the body., Fact2: Antigens prompt the body to produce antibodies., Question: Antigens are molecules that prompt the what of antibodies? (A) termination (B) failure (C) humans (D) decrease (E) production (F) anemia (G) rapid expansion (H) kinetic

Output: E

Input: Consider Input: Fact1: Populations of viruses do not grow through cell division because they are not cells., Fact2: Cells, the basic units of every living organism, proliferate by binary division., Question: In what way do viruses not proliferate? (A) adding heat (B) at or near the margins (C) They may not survive. (D) dry conditions (E) heat or cold (F) by indirect light (G) Localized damage (H) binary division
Output: H