Definition: 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").
Input: Fact1: lakes are formed by precipitation and runoff, Fact2: Snowmelt runoff is a significant source of annual runoff., Question: Snowmelt can help form what? (A) calories (B) lakes (C) rivers (D) sunlight (E) streams (F) moonlight (G) soils (H) erosion
Output:
B