This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammatory bowel disease, Subject name: Surgery
Most common cause of death in Crohn's disease is due to: 
Select and explain. 
A. Sepsis, B. Thromboembolic complication, C. Electrolyte disturbance, D. Malignancy
D: Malignancy
Answer: D: Malignancy 
Explanation: Both crohn's disease & Ulcerative colitis | | risk of colorectal cancer & S.I malignancy M/C Cause of death in CD - Malignancy