A patient with RUQ abdominal pain and dark urine. Labs show low Hgb, low platelets, increased total bili, increased LDH and decreased haptoglobin. MRI shows hepatic vein thrombosis. Dx? Cause?

a) Budd-Chiari Syndrome
b) Acute Cholecystitis
c) Acute Pancreatitis
d) Acute Appendicitis