It'll be much cleaner for the environment.
its answer is A.
please let me know how helpful it is
It allows scientists to explore new explanations for observations.
Answer:
Mitochondria
Explanation:
Pyruvic acid enters the mitochondria where in the presence of oxygen it is converted into acetyl coenzyme A. Acetyl coenzyme A joins the Krebs cycle in which it is broken down to carbon dioxide, water and energy which is used to produce ATP. ATP is a complex organic molecule.