How Does Iteration Differ from Linkage

How does iteration differ from linkage?

A) In iteration,agreements are specifically enumerated,rather than being combined or linked to other agreements.
B) In iteration,all actors share all relevant information,rather than strategically withholding key information.
C) In iteration,an actor makes the first move in negotiations rather than waiting to use information from other sources to get a better outcome.
D) In iteration,an actor waits for others to set the agenda for bargaining,rather than promising cooperation in the future.
E) In iteration,an actor can punish another by withholding cooperation in the future,rather than withholding cooperation on other issues.