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: Some touch receptors sense differences in temperature or pain., Fact2: Touch receptors are free nerve endings or nerve endings that are surrounded by a capsule., Question: What senses differences in temperature? (A) the skin (B) Electric devices (C) animals (D) an electric stove (E) nerve endings (F) an organism's body (G) Most plants (H) peachleaf willow
[A]: E


[Q]: Fact1: energy is used for heating a building by a heating system, Fact2: Radiators are used to heat the building, The energy source is oil., Question: What do radiators use to heat buildings? (A) coal (B) CFCs (C) Solar power (D) Oil (E) Oxygen (F) hot (G) Hydrogen (H) fuse
[A]:
D