Final answer:
The treatment for gallstones involving a Trans-hepatic biliary catheter is often surgical removal. Antibiotic therapy may also be used.
Step-by-step explanation:
The treatment for gallstones involving a Trans-hepatic biliary catheter is often surgical removal (B).
Trans-hepatic biliary catheter is a procedure where a catheter is inserted into the liver to drain bile from the bile ducts.
In some cases, antibiotic therapy (A) may also be used to prevent or treat infections related to gallstones.