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: Pediatrics
The most common type of congenital atresia is 
Select and explain. 
A. Proximal blind end, distal end communicating with trachea, B. Distal blind end, proximal end communicating with trachea, C. Proximal and distal ends open and communicating with trachea, D. Both ends bleed
A: Proximal blind end, distal end communicating with trachea
Answer: A: Proximal blind end, distal end communicating with trachea 
Explanation: Type C is the most common type of tracheoesophageal fistula. It involves proximal esophageal atresia with distal TEF.