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: Orthopaedics
Trimalleolar fracture is 
Select and explain. 
A. Pott's fracture, B. Cotton's fracture, C. Tillaux fracture, D. Jone's fracture
B: Cotton's fracture
Answer: B: Cotton's fracture 
Explanation: None