The correct answer is: A. Ganderbal
Ganderbal district was formed in 1979 after separating from Srinagar and Anantnag districts. It is located in the central part of the Kashmir Valley, and its headquarters is the town of Ganderbal. The district has a population of over 400,000 people, and its main languages are Kashmiri and Urdu.
The district is home to a number of important historical and religious sites, including the Shankaracharya Temple, the Hari Parbat Fort, and the Hazratbal Shrine. It is also a popular tourist destination, and is known for its beautiful scenery and its many lakes and rivers.
The other options are incorrect because they were not formed in 1979. Bandipora district was formed in 1968, Budgam district was formed in 1970, and Kupwara district was formed in 1979.