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 is associated with the death of cells., Fact2: When telomeres become too short, the cell dies., Question: What is associated with aging? (A) Extra cells (B) intelligence (C) forest is destroyed (D) Chemical energy (E) Strong cells (F) oxidation reaction (G) Short telomeres (H) massive damage
Example Output: G

Example Input: Fact1: nerves can be used to feel heat and pressure on the skin, Fact2: Firm hugs and hiding under piles of pillows provides the sensory input to the skin known as deep touch-pressure input., Question: The body measures sensor input to the skin such as what? (A) Heart rate (B) Light (C) kind look (D) lound noises (E) hormones (F) firm hugs (G) laughter (H) Temperature
Example Output: F

Example Input: Fact1: Invertebrates are animals that lack a vertebral column, or backbone., Fact2: Snails and slugs are invertebrates., Question: What lack a vertebral column? (A) snakes (B) cacti (C) eels (D) insects (E) Conifers (F) ferns (G) fish (H) snails
Example Output:
H