This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Narrowest pa of the urethra is? 
Select and explain. 
A. External meatus, B. Membranous urethra, C. Bulbous urethra, D. Internal meatus
A: External meatus
Answer: A: External meatus 
Explanation: Ans. is 'a' i.e., External meatus