Correct option is C
Ooty
Ooty, officially known as Udhagamandalam (also known as Udhagai), is a town and a municipality in the Nilgiris district of the South Indian state of Tamil Nadu.
Nilgiris, one of the oldest mountain ranges, is located at the tri-junction of Tamil Nadu, Kerala, and Karnataka. Nilgiri is a part of the Western Ghats.
Ooty the “Queen of Hill Stations”, Coonoor 19 km from Ooty, and Kotagiri 31 km from Ooty, are the three hill stations of this district