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: pollutants have a negative impact on the environment, Fact2: Carbon dioxide is a pollutant., Question: What affects the environment negatively? (A) sunlight (B) normal weather patterns (C) carbon dioxide (D) cigarettes (E) positivity (F) Smoking (G) harmful substances (H) fossil fuels

Ex Output:
C

Ex Input:
Fact1: Soil can be depleted of nutrients., Fact2: Dirt is really misplaced soil., Question: When gardening what can be depleted of nutrients? (A) fertilizer (B) bacteria (C) the plant (D) coal (E) pine (F) the dirt (G) Acids (H) water

Ex Output:
F

Ex Input:
Fact1: Sperm had to swim from male to female reproductive organs for fertilization., Fact2: If the egg is fertilized, it can implant in the uterus and cause pregnancy., Question: what does sperm have to swim from male to female reproductive organs for? (A) respiration (B) babies (C) pregnancy (D) allow growth (E) penis (F) death (G) seeds (H) orchids

Ex Output:
C