The correct answer is: South West Jaintia Hills.
South West Jaintia Hills is the most recently formed district of Meghalaya. It was carved out of the East Jaintia Hills district on 31 December 2012. The district has an area of 2,466 square kilometers and a population of 337,000. The headquarters of the district is at Jowai.
The other options are incorrect because they are not the most recently formed districts of Meghalaya.
- Eastern West Khasi Hills was formed in 1976.
- South East Khasi Hills was formed in 1992.
- North West Garo Hills was formed in 2001.
South West Jaintia Hills is a hilly district with a tropical climate. The main rivers in the district are the Mynshi, the Kynshi, and the Umngot. The district is home to a variety of ethnic groups, including the Jaintias, the Khasis, and the Garos. The main languages spoken in the district are Khasi, Garo, and English.
The economy of South West Jaintia Hills is based on agriculture, forestry, and tourism. The main crops grown in the district are rice, maize, and potatoes. The district is also home to a number of tea plantations. The main tourist attractions in the district are the Dawki River, the Nokrek National Park, and the Mawlynnong village.