Answer:
B. Being able to control an animal’s environment.
Explanation:
An ecosystem can be defined as the natural living habitats of both living and non-living organisms. Essential services such as plant pollination, water purification, nutrient cycling etc that are being provided by the ecosystem are really very vital, important and useful for the sustenance of life, both for humans and enhances social welfare.
Custodial management can be defined as a wildlife management technique that is typically focused on protecting or preventing any harm to the environment of living organisms such as plants and animals.
Basically, the main purpose of a custodial management is to minimize or mitigate any external influence on the living organisms and their natural habitat such as in wildlife. Thus, there are no interference by anyone on the animals in their natural habitats or wildlife.
Hence, an element of custodial management is being able to control an animal’s environment.