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: Mollusks live in most terrestrial, freshwater, and marine habitats., Fact2: Interestingly, a squid is also a mollusk., Question: What can live in marine habitats? (A) lizards (B) horses (C) elephants (D) fur seals (E) a fish (F) squids (G) barnacles (H) animals

Ex Output:
F

Ex Input:
Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Ants are social insects living in colonies., Question: What type of behavior does an ant have? (A) Randomized (B) Social (C) Solitary (D) dangerous (E) complex (F) Problematic (G) movement (H) kinetic

Ex Output:
B

Ex Input:
Fact1: air pollution can cause the pH of soil to decrease, Fact2: Incinerated mercury pollutes the air., Question: what can cause the ph of soil to decrease? (A) Greenhouse gasses (B) contamination (C) fossil fuels (D) chlorofluorocarbons (E) incinerated mercury (F) harmful substances (G) Greenhouse gases (H) Temperature

Ex Output:
E