Which of the following is a major problem affecting the development of the Southern coast-lands of Nigeria?

Oil pollution and spillage is a major problem affecting the development of the Southern coast-lands of Nigeria. This is because the area is a major oil-producing region, and oil exploration and production activities have led to significant pollution and environmental degradation. The oil spills and pollution have adversely affected the agricultural land, fishing industry, and the livelihood of the people. The oil pollution also poses health hazards to the inhabitants of the region. Therefore, oil pollution and spillage is a major challenge to the sustainable development of the Southern coast-lands of Nigeria.