Detailed Instructions: 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").
Problem:Fact1: keeping food cold is used for keeping food fresh, Fact2: Refrigerators are suppose to add coldness to the food inside of it., Question: what keeps food fresh? (A) Enzymes (B) fur and fat (C) boiling water (D) refrigerators (E) microwaves (F) electricity (G) carrots (H) a hydraulic system
Solution:
D