If All Diseases Are Eradicated and Food Supply Exceeds Demand

If all diseases are eradicated and food supply exceeds demand indefinitely,the human population on the planet earth will NOT continue to grow at an exponential rate indefinitely because

A) a new disease organism will evolve.
B) density-independent factors will always remove individuals.
C) space will become a limiting factor.
D) the few humans left will engage in war and kill each other.
E) all of these will occur.