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: the Earth being tilted on its rotating axis causes seasons, Fact2: Lake levels can change seasonally and annually., Question: What does the Earth being tilted on its rotating axis cause? (A) Lake level changes. (B) degrees celcius (C) degrees Celsius (D) a lot of human deaths (E) dry conditions (F) exposure to cold (G) global warming (H) heat is produced
A:
A