This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: ENT
Angiofibroma bleeds profusely because: 
Select and explain. 
A. It has multiple sites of origin, B. It lacks a capsule, C. Vessels lack a contractile component, D. None of the above
C: Vessels lack a contractile component
Answer: C: Vessels lack a contractile component 
Explanation: Angiofibroma is made of vascular and fibrous tissues vessel are endothelial lined spaces with no elastic or muscle coat vessels lose ability to contract , thus bleed profusely