5. Rody, Dick and Frank are solidary debtors under a loan obligation of P300,000 which has fallen due. The creditor has, however, condoned Frank's entire share in the debt. Since Dick has become insolvent, the creditor makes a demand on Rody to pay the debt. (a) How much, if any, may Rody be compelled to pay? (b) To what extent, if at all, can Frank be compelled by Rody to contribute to such payment