The Nurse Assesses a Client's Chest Tube and Finds Continuous

The nurse assesses a client's chest tube and finds continuous bubbling in the water seal chamber.When the nurse clamps the chest tube close to the client's dressing,the bubbling stops.How does the nurse interpret this finding?

A) An air leak is present at the chest tube insertion site or in the thoracic cavity.
B) An air leak is present in the drainage system.
C) More water needs to be added to the water seal.
D) The system is functioning appropriately and no intervention is needed.