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").
Q: Fact1: plasma is formed by electrons separating from atoms in stars, Fact2: Gas Ionization Losing electrons ionizes the atoms in a gas., Question: You cannot have matter in a plasma state without what? (A) energy (B) Energy. (C) voltage (D) ionization (E) nutrients (F) light (G) heat energy (H) kinetic energy
A:
D