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").

[Q]: Fact1: if an organism becomes too hot then that organism may die, Fact2: Hot sun can bleach flowers., Question: What can kill flowers? (A) Petals (B) Too much sun (C) cancer (D) Pollination (E) burning (F) dry conditions (G) Pesticides (H) Quality soil
[A]: B


[Q]: Fact1: knowledge of the stars can be used to navigate, Fact2: Of course, astronomers also study stars., Question: What can be used to navigate? (A) music (B) backbones (C) astrology (D) cilia (E) magic (F) sponges (G) astronomy (H) lamphreys
[A]: G


[Q]: Fact1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, Fact2: Coal-fired plants Are power stations which burn coal to generate electricity., Question: power stations which generate electricity produce gases in the atmosphere cause what (A) drought (B) Pollution (C) storms (D) Temperature (E) heat (F) contamination (G) acid rain (H) climate
[A]:
G