Current Evolutionary Data Groups Land Plants with Green Algae and Red

Current evolutionary data groups land plants with green algae and red algae.Brown algae,which you often find in the same habitat as red and green algae,is part of a distantly related group that includes the diatoms.This suggests that _____.

A) green algae and land plants are not closely related
B) green algae are very closely related to the brown algae
C) green,red,and brown algae form a single taxon unto themselves
D) the term "algae" does not indicate a single taxon