A scientist claims that the presence of aquaporins in mitochondrial membranes supports the endosymbiotic theory. Which of the following statements would be evidence that supports the endosymbiotic theory?
A. aquaporins are present in mitochondria but are considered a vestigial structure that is no longer needed by mitochondria in a eukaryotic cell
B. Aquaporins were not present in the plasma membrane of ancestral free-living prokaryotic cells evolved to be part of mitochondria in eukaryotic cells due to the need to move water into mitochondria
C. Aquaporins were present in the mitochondria of ancestral free-living prokaryotic cells
D. Aquaporins were present in the plasma membrane of ancestral free-living prokaryotic cells
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