The kingdom Protista is quite diverse and the relationship among its various members is unclear. The best method of clarifying those relationships will require that biologists

A)remove the kingdom from Eukarya and place it in its own domain.
B)match each of the protist traits with the corresponding animal trait of the common ancestor.
C)separate the eukaryotic protists from the prokaryotic protists.
D)create an evolutionary tree for the group using comparative DNA data.