Detailed Instructions: 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").
Problem:Fact1: cycles of freezing and thawing water cause ice wedging, Fact2: Ice wedging is the most important form of mechanical weathering., Question: Cycles of freezing and thawing water cause (A) exposure to cold (B) the oak can fall (C) mechanical weathering (D) the looseness of soil (E) In the winter (F) Metling snow (G) colder and wetter (H) looseness of dirt or compost
Solution:
C