This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Most severe form of Ehler Danlos syndrome is 
Select and explain. 
A. Type 1, B. Type 2, C. Type 4, D. Type 8
C: Type 4
Answer: C: Type 4 
Explanation: Ahrochalasia EDS (aEDS, formerly categorized as types 7A & B) is characterized by severe joint hypermobility and congenital hip dislocation. Other common features include fragile, elastic skin with easy bruising, hypotonia, kyphoscoliosis (kyphosis and scoliosis), and mild osteopenia. Refer robbins 145