<prompt> The most common type of congenital atresia isProximal blind end, distal end communicating with tracheaDistal blind end, proximal end communicating with tracheaProximal and distal ends open and communicating with tracheaBoth ends bleed  <response>: Type C is the most common type of tracheoesophageal fistula. It involves proximal esophageal atresia with distal TEF. 