Read the passage below carefully:
The Kainji Dam, constructed across the River Niger in Niger State, Nigeria, was commissioned in December 1968 after four years of construction work. Built primarily for hydroelectric power generation, the dam created Kainji Lake, a vast reservoir that submerged several rural settlements and displaced over 44,000 residents. To accommodate the displaced population, the federal government constructed 127 new resettlement villages equipped with basic infrastructure. Beyond power generation, the dam was designed to improve navigation along the River Niger down to the port of Burutu and to control seasonal downstream flooding. However, initial plans to develop a large-scale commercial fishing industry within the reservoir were hindered by unexpected ecological shifts in fish species composition.
According to the passage, all of the following were achieved or explicitly stated as project outcomes EXCEPT the
- Arelocation of over 44,000 displaced residents into 127 new villages
- Bregulation of seasonal flooding along the lower stretches of the River Niger
- successful establishment of a commercial fishing industry in the reservoirAnswer
- Dimprovement of vessel navigation along the river down to Burutu port