Which of the following is NOT the role of molecular chaperones in the folding of cellular proteins?

A) They assist proteins in folding into their correct conformations.
B) They help prevent formation of protein aggregates.
C) They specify the final three-dimensional shape of proteins.
D) They catalyze the folding of proteins in the crowded environment of the cell.
E) They make the protein-folding process in the cell more reliable.