Concept:Carrying capacity is the largest population size that an environment can support without being degraded.
Explanation:The environment provides limited resources such as food, water, shelter, and space.
When a population reaches the maximum number that these resources can sustain over time, that limit is known as the carrying capacity.
Populations may temporarily exceed this number, but shortages of resources will cause the population to decline back toward the carrying capacity.
This idea reflects the balance between resource availability and the needs of the species.
It is not a niche, a limiting factor, or a density-dependent factor alone, although those ideas relate to population growth.
Therefore, the term defined in the question is carrying capacity.
Answer:C. Carrying capacity