Which of these observations fails to support the endosymbiotic theory for the origin of eukaryotic cells?
A)The existence of structural and molecular differences between the plasma membranes of prokaryotes and the internal membranes of mitochondria and chloroplasts.
B)The existence of size differences between the cytosolic ribosomes of eukaryotes and the ribosomes within mitochondria and chloroplasts.
C) the existence of size differences between some prokaryotic cells and mitochondria.
D) the existence of rRNA sequence differences between the cytosolic ribosomes of eukaryotes and the ribosomes within mitochondria and chloroplasts.