What is a metabolon?
A. a set of metabolites that are linked together through mass action control of the metabolic flux in a pathway
B. a supramolecular assembly of sequential metabolic enzymes held together by noncovalent interactions
C. the complete set of small-molecule metabolites present in a given cell or tissue under specific conditions
D. a chemical intermediate in the enzyme-catalyzed reactions of metabolism
E. the entire set of enzyme-catalyzed transformations of organic molecules in living cells