Explain how evolution is both fact and theory?

Scientific understanding requires both facts and theories that can explain thosefacts in a coherent manner. Evolution, in this context, is both a fact and a theory. It is an incontrovertible fact that organisms have changed, or evolved, during the history of life on Earth.

Mutations are changes in the dna

Well i had the same answer, so the correct answer would be a. but in this case it would be the one with plasma membrane and cell wall circled that is next to the hairy pill type of thing.