What Does the Statement "The Five-Factor Model Doesn't Cover All

What does the statement "The five-factor model doesn't cover all personality" mean?

A) It means there are many people who do not possess any of the big five factors.
B) It means higher scores on the big five result in better performance.
C) It means there are probably one or two traits omitted by the big five.
D) It means personality studies differences between people, not similarities.
E) It means the Big Five is one of several perspectives on personality.