Which of the following groups of protein assist in the folding of other proteins?

Chaperones are present when the macromolecules perform their normal biological functions and have correctly completed the processes of folding and/or assembly.The chaperones are concerned primarily with protein folding.The first protein to be called a chaperone assists the assembly of nucleosomes from folded histones and DNA and such assembly chaperones, especially in the nucleus, are concerned with the assembly of folded subunits into oligomeric structures.