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: natural disasters can cause animals to leave an environment, Fact2: And like fire, flooding is a common and widespread natural disaster., Question: What can cause animals to leave their environment? (A) predators (B) rainfall (C) space travel (D) flooding (E) drought (F) mines (G) wind (H) weather
[EX A]: D

[EX Q]: Fact1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil, Fact2: Roots gather plant nutrients., Question: What does looseness of soil have an impact on? (A) age of the plant (B) viability of plant (C) important habitats (D) bloom time (E) climate (F) water retention (G) Plants growth (H) genetic diversity
[EX A]: G

[EX Q]: Fact1: an animal requires air for survival, Fact2: Oxygen Oxygen is in the air we breathe., Question: What do animals require for survival? (A) food (B) glycogen (C) Lithium (D) water (E) sugar (F) Helium (G) Aluminum (H) Oxygen
[EX A]:
H