What finding supports esophageal atresia in newborn?

Correct option is B

Continuous drooling is classic for esophageal atresia, where the esophagus doesn't connect to the stomach, leading to pooling of saliva. Explanation of options:
· (a) ✘ Non-specific and not diagnostic.
· (b) ✔ Hallmark sign due to inability to swallow saliva.
· (c) ✘ Not indicative of esophageal defect.
· (d) ✘ Frothy stool is unrelated to this defect.