Q: 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: Wings are part of the exoskeleton and attached to the thorax., Fact2: An exoskeleton is an external framework., Question: What body part would be attached to the external framework? (A) heart (B) insects (C) respiratory system (D) wings (E) humans (F) Tail (G) fat (H) digestive system
A:
D