Yeah. You are rightThat's not the way questions are going to be seen in the exam.
Anyway, the disease is Primary Sclerosing Cholangitis. and I argue with Kaplan Notes here. It's not a liver disease. It's a disease of the biliary tree.
In addition there are liver diseases in which you confirm the diagnosis without liver biopsy. Take Hepatitis A for example, nobody has ever done a liver biopsy for that