You will be given a definition of a task first, then some input of the task.
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: plasma is formed by electrons separating from atoms in stars, Fact2: Metal atoms are ionized in an intense plasma., Question: what does plasma ionize? (A) Joules (B) metal (C) coal (D) SO2 (E) homes (F) matter (G) Energy. (H) energy
Output:
B