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: Ribosomes are structures in the cytoplasm where proteins are made., Fact2: E ndoplasmic reticulum are membranes attached to ribosomes., Question: Endoplasmic reticulum are what attached to structures in the cytoplasm where proteins are made? (A) recycling (B) allow growth (C) membranes (D) organ (E) layers of fat (F) more abundant (G) epidermal (H) Most plants
Output:
C