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
A 7-year-old child having yellowish discoloured spot of maxillary central incisor. His mother presents a history of injury to deciduous tooth 3 years back with recurrent infections & swelling. The diagnosis is 
Select and explain. 
A. Turners hypoplasia, B. Generalised dental fluorosis, C. Syphilitic hypoplasia, D. Rickets hypomineralisation
A: Turners hypoplasia
Answer: A: Turners hypoplasia 
Explanation: None