Final answer:
A T-tube placed in the CBD after a laparoscopic cholecystectomy typically exits through a right upper quadrant incision due to the anatomical location of the gallbladder and CBD.
Step-by-step explanation:
The question relates to the exit point of a T-tube used to drain the common bile duct (CBD) after a laparoscopic cholecystectomy. The correct exit point for a T-tube placed in the CBD following this procedure would be through a d. Right upper quadrant incision. This is because the gallbladder and CBD are anatomically located in the right upper quadrant of the abdomen. Insertion through a right upper quadrant incision provides direct access to the CBD for optimal placement of the T-tube.