Assume Tina, Nick, Ravi, and Sean are Anna's co$-$sureties. When Anna defaults, Sean pays the whole obligation. He is then entitled to collect one$-$fourth from Tina, Nick, and Ravi since he paid more than his prorated share. This is known as the

debtor's right of exoner$$n

cosurety$\text{'}$s right to reimbursement

debtor's right of subrogation

cosurety$\text{'}$s right to contribution