The correct option is E Interspecific competition
Predation refers to the act of feeding on other animals. Commensalism refers to the relationship wherein one organism is benefited while other remain unaffected. Interspecific competition occurs for natural resources which are present in limited quantity. Organisms having more adaptive features that enable them to use the resource wins the interspecific competition. Both partners are benefited from the association in mutualism. Parasitism is the relationship where one organism is benefited at the expense of other. Thus, the correct answer is option C.