This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intestinal Polyps, Colon & Anal Cancer, Subject name: Pathology
55 year old male presents with hyperpigmentation, nail atrophy and reversible hair loss. Patient also have hamaomatous colon polyps. Diagnosis is ? 
Select and explain. 
A. Turcot syndrome, B. Peutz-Jeghers syndrome, C. Bannayan-Ruvalcaba-Riley syndrome, D. Cronkhite-Canada syndrome
D: Cronkhite-Canada syndrome
Answer: D: Cronkhite-Canada syndrome 
Explanation: Patient is suffering from Cronkhite Canada syndrome Mn: C - Cronkhite Canada syndromeA- Acquired, skin & appendages of skin- Hyperpigmentation- Reversible Hair loss- OnychodystrophyD - Diarrhea (Massive)- Cause of death GI Lesions: Hamaomatous colon polyps, Crypt dilatation and edema in nonpolypoid mucosa