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: Ground tissue makes up most of the interior of a plant., Fact2: Oaks are the most commonly attacked plants., Question: Ground tissue makes up most of the interior of what? (A) air (B) Earth (C) Sponge (D) oaks (E) bacteria (F) homes (G) rocks (H) stoma
Output:
D