Final answer:
The chaperone protein that assists in the folding of the intermediately-formed polypeptide is Hsp70, also known as Heat-shock 70 protein. The options given indicate that the correct answer is DnaK.
Step-by-step explanation:
The chaperone protein that assists in the folding of the intermediately-formed polypeptide is Hsp70, also known as Heat-shock 70 protein.
After association with Hsp70, the polypeptide can either fold on its own, go into the GroEL chaperonin for folding, or undergo another round of association with DnaJ and Hsp70.
This indicates that the correct answer is C) DnaK.