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 thermal conductor is exposed to a source of heat then that conductor may become hot, Fact2: Radiant heat is the way the sun heats the planet., Question: What can cause a thermal conductor to become hot? (A) exposure to ice (B) exposure to a freezer (C) Evaporation (D) exposure to the sun (E) exposure to metal (F) electricity (G) flow of electrons (H) Electrical energy
D