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: if a planet becomes too hot then that planet cannot sustain life, Fact2: Sunlight passes through the atmosphere to heat the surface of the planet., Question: What can't too much sunlight sustain? (A) heat (B) warmth (C) corn (D) life (E) energy (F) Injury (G) algae (H) biome
D