A) N-50 National Highway — the route linking Multan with Dera Ghazi Khan and onward toward Loralai
B) N-50 National Highway — the motorway linking Islamabad and Peshawar
C) N-50 National Highway — the highway corridor through Kuchlak and Zhob toward Dera Ismail Khan
D) N-50 National Highway — the motorway linking Islamabad and Lahore
Answer: C
Explanation: N-50 National Highway is associated with the highway corridor through Kuchlak and Zhob toward Dera Ismail Khan.