Mitochondria are found in most eukaryotic cells and contain their own DNA and ribosomes that are similar to those typical of many prokaryotic cells
Which of the following statements is justified by these observations?

a) the mitochondrion is the only location in which eukaryotic cells can synthesize atp
b) an ancestral cell most likely engulfed and aerobic prokaryote in a relationship that proved beneficial for both cells
c) mitochondrial membrane provide abundant surface area for reactions because of the infoldings called cristae
d) the mitochondrion plays a role in respiration but it also stores the cell's mRNA