The correct option is D 10650
From the given information, we can get the following table
Rural areaUrban areaPublic Sector BanksPublic Sector Banks=450=150004=3750Private Banks=300Private Banks =15000×12100=1800
Public Sector Banks in rural and urban areas =3600
Public and Private Sector banks in urban area=15000×15100=2250
Public and private sector banks in rural area =600
Inexperienced candidates =15000−12750=2250
Required number of candidates =450+3750+3600+2250+600=10650