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").

Example Input: Fact1: Aging occurs as cells lose their ability to divide., Fact2: Death is attributed to the infirmities of old age., Question: What occurs as cells lose their ability to divide? (A) illness (B) Winter (C) disease (D) death (E) youth (F) die (G) black holes (H) cell growth
Example Output: D

Example 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
Example Output: B

Example Input: Fact1: Growth is faster during infancy than it is during puberty., Fact2: Physiological stresses can relate to changes in growth size, for example., Question: What are faster during infancy than during puberty? (A) unicellular organisms (B) several genes (C) changes in size (D) changes in speed (E) prokaryotic cells (F) changes in eating (G) changes in color (H) thermal expansion
Example Output:
C