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: rocks interacting with wind over long periods of time causes weathering, Fact2: On Earth, rocks are weathered by wind and water, creating soil and sand., Question: What causes rocks to weather? (A) seasons (B) force (C) erosion (D) storms (E) water (F) heat (G) lightning (H) gas
[EX A]: E

[EX Q]: Fact1: Some touch receptors sense differences in temperature or pain., Fact2: Touch receptors are a type of mechanoreceptor., Question: some mechanoreceptors sense what in temperature? (A) Energy (B) Energy. (C) hunger (D) pain (E) differences (F) kinetic energy (G) heat energy (H) similarities
[EX A]: E

[EX Q]: Fact1: Organisms that live in marine biomes must be adapted to the salt in the water., Fact2: Marine life is equally diverse and abundant, from tiny plankton to blue whales., Question: What must be adapted to the salt in the water? (A) dogs (B) blue whales (C) ice (D) mammals (E) fur seals (F) bacteria (G) animals (H) humans
[EX A]:
B