The Evolution of Eukaryotic Cells Most Likely Involved

The evolution of eukaryotic cells most likely involved

A) endosymbiosis of an aerobic bacterium in a larger host cell-the endosymbiont evolved into mitochondria.
B) anaerobic archaea taking up residence inside a larger bacterial host cell to escape toxic oxygen-the anaerobic bacterium evolved into chloroplasts.
C) an endosymbiotic fungal cell evolved into the nucleus.
D) acquisition of an endomembrane system, and subsequent evolution of mitochondria from a portion of the Golgi.
E) fusion of several prokaryotes to form one larger organism.