This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
NOT RELATED- OHO Rolando's fracture is 
Select and explain. 
A. Fracture distal radius with inferior radioulnar dislocation, B. Fracture distal end of radius with dorsal displacement and angulation, C. Fracture radial styloid, D. Fracture extra-aicular surface of the base of first metacarpal
D: Fracture extra-aicular surface of the base of first metacarpal
Answer: D: Fracture extra-aicular surface of the base of first metacarpal 
Explanation: a. Fracture distal radius with inferior radioulnar dislocation=Galeazzi fracture.b. Fracture distal end of radius with dorsal displacement and angulation=Colle'sfracturec. Fracture radial styloid=Chauffer's fractured. Fracture aicular surface of the base of first metacarpal=Rolando's fracture.