Which of the following metabolites is commonly produced during the breakdown of fats, carbohydrates, and proteins?

Step-by-step solution

Acetyl CoA is the common metabolite which is produced during the breakdown of fats, carbohydrate and proteins. Fatty acid break down to form acetyl CoA. Breakdown of carbohydrates form pyruvic acid oxidation of which forms acetyl CoA and breakdown of proteins forms amino acid which gets oxidized to form acetyl CoA.