According to the theory of mitochondria in cells today are the descendents of aerobic prokaryotes that used oxygen to generate energy.

The appropriate response is Endosymbiosis theory. It endeavors to clarify the birthplaces of eukaryotic cell organelles, for example, mitochondria in creatures and growths and chloroplasts in plants were enormously best in the class by the original work of scientist Lynn Margulis in the 1960s.

The theory of endosymbiosis states that chloroplasts and mitochondria were indepedent bacteria, previously. They were purple non sulfur bacteria, and were engulfed by other prokaryotic species, and thus became a part of their internal oraganelle. It was postulated by Linn Margulis

The correct answer would be b. carbon dioxide (6 co2) + water (6 h2o) > glucose (c6h12o6/ sugar) + oxygen gas (6 o2)