See the explanation below.
Work Step by Step
The given conditions in the scenario show a linkage to a common ancestor. Therefore, there are 3 possible solutions. First, the Archea-eukaryotes may have split from eubacteria, resulting in the seperation of archea from eukaryotes. Second, the Eubacteria -archea may have split from eukaryotes, and then eubacteria separted from archea. The last scenario is that eubacteria - eukaryotes split from archea, which was then followed by the separation of eubacteria from eukaryotes.