There are many varying characteristics and exceptions to each type of protist.
They have been previously categorized based on what they are not.
They are all eukaryotes composed of one or more cells that contain nuclei.
There are no exceptions to the characteristics of each type of protist.
They are microscopic and therefore too small to study accurately.
Recent studies show that protists have not descended from one common ancestor.
Evolution and diversity results from the interactions between organisms and their environments and the consequences of these interactions over long periods of time.
I am going to go with either C,A B.
I'm not entirely sure. it's just what i think
