Drew and Earl Are Brothers

Drew and Earl are brothers. They agree to act as guarantors on a loan made by their sister, Flo. Flo defaults on the payments and Drew refuses to pay. Earl pays the debt. Earl can recover from

A) Drew and Flo under the right of proportionate liability.
B) Drew and Flo under the right of reimbursement.
C) Drew under the right of contribution and Flo under the right of reimbursement.
D) no one, because the parties are brothers and sister.