This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Villous polyp of rectum manifest - 
Select and explain. 
A. Bleeding PR, B. Mucus diarrhoea with hypokalemia, C. Prolapse rectum, D. Obstruction
B: Mucus diarrhoea with hypokalemia
Answer: B: Mucus diarrhoea with hypokalemia 
Explanation: • Villous adenoma causes profuse watery diarrhea and hypokalemia, hyponatremia, hypochloremia and metabolic acidosis.
• Best treatment: Submucosal resection endoscopically or surgically (Provided cancerous change has been excluded).