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: All animals are heterotrophs., Fact2: Proteins are an essential nutrient for heterotrophs ., Question: Protein is an essential nutrient for what? (A) Animals (B) Algae (C) Carbohydrates (D) health (E) recovery (F) athletes (G) humans (H) Plants
Student:
A