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: staying warm has a positive impact on an animal 's survival, Fact2: Effective insulation is the way to keep the warm air warm., Question: Effective insulation has a positive impact on an animal's what? (A) heat energy (B) survival (C) water (D) food (E) growth (F) ideas (G) Energy. (H) energy
Student:
B