Natality is the birth rate, which is a primary factor that increases population size.

A.Predation is a biotic factor that can increase the death rate and thus limit population growth, especially as the prey population becomes denser.

B. food shortage: A lack of sufficient food is a major limiting factor (biotic or abiotic depending on the context) that can increase mortality rates and decrease birth rates, thereby limiting growth.

D. Disease is a biotic factor that can spread more rapidly in dense populations, increasing the death rate and limiting population growth.