Respuesta :
The correct answer is letter D. To provide equal access to water sources. Nucleated settlements are designed to be like this to enable people to have easy access not only on water but also in other forms of produce like agriculture and domestication. This gives people the equal opportunity to maximize what available resources are within their location.
Answer: B- to provide protection
Half of the world's population still lives in this type of settlement, because it offers security, community, and practical land usage for housing and food production.