Which Statement Is INCORRECT Regarding Using Imaging for Patients with Suspected

Which statement is INCORRECT regarding using imaging for patients with suspected jaundice?

A) For clinically suspected obstructive jaundice, the initial imaging procedure is commonly ultrasonography.
B) When a patient presents with obstructive jaundice, weight loss, and vague back pain, MRCP is sufficient for diagnosis.
C) MRCP is used to provide excellent depiction of the biliary and pancreatic ducts.
D) The suspicion that obstruction of the common bile duct caused by a calculus is increased if the patient has many tiny calculi ("biliary gravel") in the gallbladder that are apparent on ultrasound.