The Rate of Human Population Growth Has Not Yet Leveled

The rate of human population growth has not yet leveled off because

A) the human population experiences a greater number of births than deaths each year.
B) humans are using resources more rapidly than they are replenished, a pattern of resource use that allows the population to temporarily increase but that cannot be sustained.
C) humans use technology to increase the carrying capacity of the places where they live.
D) all of the above