What is the most likely diagnosis for a patient presenting with episodic right upper quadrant (RUQ) pain that worsens after eating, with a history of sedentary lifestyle, obesity, poor diet, liver disease, and a history of cholelithiasis?
A) Gastroesophageal Reflux Disease (GERD)
B) Peptic Ulcer Disease (PUD)
C) Cholecystitis
D) Pancreatitis
