What is the key difference between a dominant species and a keystone species?

• A. There is no difference. The two terms are synonymous.
• B. Dominant species alter the structure or dynamics of the environment; keystone species are the most abundant.
• C. The removal of a dominant species from a community has more impact than removing a keystone species.
• D. Keystone species are more successful at evading their predators and the impacts of disease.
• E. Dominant species are the most abundant; keystone species exert control through important roles or niches.