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: ice wedging is when ice causes rocks to crack by expanding in openings, Fact2: Ice wedging is the most important form of mechanical weathering., Question: What is the most important part of mechanical weathering? (A) roots and shoots (B) when they liquify (C) roots to grow (D) when it melds into soil (E) volcanic rock cracking (F) a tree falling (G) the looseness of soil (H) ice causes rocks to crack
Solution:
H