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: if a living thing becomes too cold then that living thing will die, Fact2: Plants are also the oldest living things., Question: what dies if it becomes too cold? (A) plants (B) starfish (C) trout (D) planets (E) trees (F) ice (G) bears (H) clouds
[EX A]: A

[EX Q]: 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
[EX A]: B

[EX Q]: Fact1: cross-pollination increases genetic diversity, Fact2: Cross Pollination Cross pollination is the gene flow between similar species of plants., Question: What happens with the gene flow between similar species of plants? (A) Genetic diversity is increased (B) sperm and egg fuse (C) basic building blocks of life (D) The gene flow dies (E) biological diversity (F) Genetic diversity is decreased (G) It helps them survive (H) The plant dies
[EX A]:
A