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
Patient having multiple odontogenic cysts, excessive length of bones, hyperexcitability of joints: 
Select and explain. 
A. Ehlers danlos syndrome., B. Marfan syndrome., C. Down syndrome., D. Reiter's syndrome
B: Marfan syndrome.
Answer: B: Marfan syndrome. 
Explanation: None