The correct answer is c) predation.
Predation is a biological interaction where one organism (the predator) hunts and eats another organism (the prey). In this scenario, the lion is the predator, and the zebra is the prey. This relationship is a fundamental aspect of ecosystems, as it helps regulate population sizes and maintain balance within food chains.
To elaborate, herbivory refers to animals that primarily eat plants, while habitat destruction involves the damaging of natural environments. A keystone species is one whose impact on its ecosystem is disproportionately large relative to its abundance. Since a lion consumes its prey and plays a vital role in controlling the populations of herbivores like zebras, predation is the most accurate term to describe this interaction.