Definition: 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").
Input: Fact1: Secondary meristem is located within and around the vascular tissues., Fact2: Secondary meristems make the stem or root grow larger in diameter., Question: What make the stem or root grow larger in diameter? (A) heart cells (B) rainfall (C) bending light rays (D) vascular tissues (E) tissue boxes (F) plant cells (G) colors of the spectrum (H) Exfoliation
Output:
D