You will be given a definition of a task first, then some input of the task.
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").

Fact1: the Earth being tilted on its rotating axis causes seasons, Fact2: Spring, summer,autumn and winter are seasons., Question: the Earth being tilted on its rotating axis causes what? (A) Weather (B) Winter (C) rest (D) spring (E) wind (F) Night and Day (G) Gravity (H) rainfall
Output:
B