Concept:The Middle Belt of Nigeria is a region with certain physical and human characteristics, and this question tests which listed statement is false.Explanation:The Middle Belt generally has less fertile soil compared to other parts of Nigeria, so saying “the soil is not productive” is acceptable.It is rich in mineral resources such as tin, columbite, and coal.Its population density is typically lower than that of the densely populated southern and northern zones.Therefore, all three given statements are true.Answer:D. None of the above