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 Q]: Fact1: when a body of water receives more water than it can hold , a flood occurs, Fact2: Flood probability is based on past floods., Question: How do we determine the probability of receiving more water than a body can hold? (A) evaporation (B) climate (C) The past (D) watershed (E) Dilution (F) energy usage (G) Temperature (H) salinity
[EX A]: C

[EX Q]: Fact1: Lions live in social groups called prides., Fact2: Lions live in Africa., Question: where are there social groups called prides? (A) under the sea (B) outer space (C) complex (D) protected (E) arctic (F) fur seals (G) Summer (H) africa
[EX A]: H

[EX Q]: Fact1: Echinoderms lack respiratory and excretory systems., Fact2: Influenza is a disease of the respiratory system., Question: What can't echinoderms do? (A) Plant growth is reduced (B) decreases its bodily water (C) reproduce (D) Contract influenza (E) Move to another area (F) Dehydration (G) kill them (H) move to different locations
[EX A]:
D