"Why is the Kingdom Protist an artificial grouping? All the answers below are correct, except which one?
A. The most recent common ancestor of all protists is also the most recent common ancestor of all eukaryotes.
B. Organisms we have traditionally called protists do not form a monophyletic clade.
C. Organisms traditionally called protists do not share a common ancestor that is also not shared with other non-protist organisms.
D. Organisms traditionally called protists do not share a common ancestor.
E. Some protists are more closely related to plants_ or to animals, or to fungi, than to other protists."
