Given the task definition and input, reply with output. 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").

Fact1: astronauts require preserved food for extended flights, Fact2: Rockets are used in space flight., Question: What requires preserved food for space? (A) satellites (B) astronauts (C) some mammals (D) survival (E) animals (F) squids (G) drones (H) lunar landers
B