Correct Option: A  [ NH 308 A ]
Remark:
NH-108: The highway starting from its junction with NH-8 near Manu, Tripura connecting Mamit, Mizoram.
NH-108A: The highway starts from its junction with NH-8 near Jolaibari connecting Belonia and terminating at Indo/Bangladesh border.
NH-208: The highway starts from its junction with NH-8 near Kumarghat connecting Kailashahar, Khowai, Teliamura, Amarpur and terminating at near Sabroom, Tripura.