What Is the Rationale for the Nurse Inflating the Balloon

What is the rationale for the nurse inflating the balloon of the catheter with water before the insertion?

A) To help keep the catheter in place in the urinary bladder
B) To detect any leaks or a nonfunctioning balloon
C) To help the catheter's advancement into the urethra
D) To flush and clean the urinary catheter before use