In cellular respiration, which process directly connects glycolysis to the citric acid cycle by converting pyruvate into acetyl-CoA?

• A. Fermentation of pyruvate to lactate to regenerate $NA{D}^{+}$
• B. Pyruvate oxidation by the pyruvate dehydrogenase complex (oxidative decarboxylation of pyruvate to acetyl-CoA)
• C. Oxidation of acetyl-CoA to $C_{O}2$ during the citric acid cycle
• D. Conversion of glucose to pyruvate via glycolysis

Answer: (B)