Directions (Q. 1-5): Read the following information carefully and answer the questions given below.
A, B, C, D, E, F and G are seven Doctors visiting a hospital on four days—Tuesday, Wednesday, Friday and Saturday, of a week. At least one person must come on a day but not more than two. Each person has a different specialisation— HIV, Orthopaedics, Paediatrics, Neurology, Ophtalmology, Radiology and Oncology. D comes with the Radiologist on Friday. The Paediatrician does not come on Saturday and also not with either E or G. Only the Oncologist comes on Tuesday. B comes on Wednesday and is not a Paediatrician. C comes on Wednesday. G is not a Radiologist. The Paediatrician comes with the HIV Specialist. The Neurologist comes on Friday. A is neither an Orthopaedician nor a Radiologist. Nobody comes with F.
What is the specialisation of A ?