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: soil erosion means soil loss through wind, Fact2: Wind is defined as moving air., Question: what causes soil loss from soil erosion? (A) nutrients (B) flooding (C) rainfall (D) moving air (E) deforestation (F) forces (G) stagnant air (H) lome
[EX A]: D

[EX Q]: Fact1: Cells have multiple repair mechanisms to fix mutations in DNA., Fact2: DNA damage is called mutation., Question: Cells have multiple repair mechanisms to fix what? (A) scarce resources (B) harmful substances (C) damage in DNA (D) critical organs (E) the skin (F) Veins and arteries. (G) layers of fat (H) heat or cold
[EX A]:
C