instruction:
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").
question:
Fact1: Evolution occurs by a process called natural selection., Fact2: Adaptation is the result of natural selection., Question: What leads to evolution? (A) Plants growth (B) competition (C) Adatation (D) our star (E) Experimentation (F) Stagnation (G) environment (H) Information
answer:
C


question:
Fact1: a fire requires oxygen to burn, Fact2: In the vacuum of space, there's no oxygen to burn., Question: Where is fire impossible? (A) evaporation (B) In space (C) A computer (D) uncontrolled (E) Inside a car (F) On television (G) summer end (H) On a mountain
answer:
B


question:
Fact1: conserving water can be used for survival in a dry environment, Fact2: Climate too dry, making the environment arid and inhospitable., Question: what type of location can water be conserved to help survival? (A) stream (B) arid (C) fens (D) biome (E) bamboo (F) rest (G) summer (H) rivers
answer:

B