It has recently been estimated that the growth in world population has slowed in the past decade. Despite this trend, environmentalists remain concerned about the environmental impact of world population, principally because ________.a. The standard of living is increasing in many developing countries, leading to an increased per capita use of natural resources
b. People are living longer in developed nations, putting a strain on the economics of those countries
c. Life expectancy is still decreasing in Africa due to AIDS
d. The standard of living is poor in many developing countries, leading to a great deal of deprivation and suffering
e. Fertility is falling due to exposure to endocrine disrupters released into the environment