<prompt> Mchanganyiko wa pyruvate dehydrogenase:A. iko kwenye sarcoplasm. B. huchochea ubadilishaji wa pyruvati hadi asetili CoA. C. huchochea ubadilishaji wa pyruvate hadi lactate. D. huchochea ubadilishaji wa lactate hadi pyruvate.  <response>: <reason> B 