Which district of Khyber Pakhtunkhwa, formerly a part of FATA, has Wana as its administrative headquarters and main commercial centre?

💡 Explanation:

Wana is the primary administrative and commercial hub of Lower South Waziristan District in Khyber Pakhtunkhwa. This region was formerly known as the South Waziristan Agency under the Federally Administered Tribal Areas (FATA) before its merger with KP in 2018.