Guyana is a small country in South America with a population just under 800,000. It is extremely rural and has only a handful of major 'cities or towns.' The percentage of the population is around 33%.
LDC or LEDC for less economically developed countries (if that's what you where looking for)
Ball. It is sort of referencing tennis. The ball is in your court.
Answer: A. to provide freshwater to support human activities.