It's B ....................................
Because of cultural reasons
Tarbela Dam (Urdu: تربیلا بند) is an earth-filled dam along the Indus River in Pakistan's Khyber Pakhtunkhwa province. ... The dam was completed in 1976 and was designed to store water from the Indus River for irrigation, flood control, and the generation of hydroelectric power.
Impounds: Indus River
Operator(s): Water and Power Development Authority (WAPDA)
Location: Swabi, Khyber Pakhtunkhwa, Pakistan
