Teacher: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").
Teacher: Now, understand the problem? Solve this instance: Fact1: sinkholes are formed by precipitation, Fact2: Eventually, the sinkhole collapses into cavern., Question: What are formed by precipitation? (A) streams. (B) clouds (C) Sediment (D) caverns (E) streams (F) rivers (G) watershed (H) rocks
Student:
D