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: Pathology
Which of the following is false ? 
Select and explain. 
A. Cowden  syndrome is due to PTEN mutation, B. Gardner syndrome is due to APC mutation, C. Turcot syndrome is due to APC mutation, D. Cronkhite - Canada syndrome is due to SMAD-4 mutation
D: Cronkhite - Canada syndrome is due to SMAD-4 mutation
Answer: D: Cronkhite - Canada syndrome is due to SMAD-4 mutation 
Explanation: Option D is a non hereditary condition.