II. DISCUSSIONS 1. May an obligor recover although there has been no strict and complete fulfilment by him of his obligation? 2. What must be delivered when the obligation consists of: (a) The delivery of a specific thing? (b) The delivery of a generic thing? 3. When is partial performance of an obligation allowed? 4. What must a debtor do to be released from his obligation if the creditor refuses to accept payment without any justifiable reason? 5. Give the requisites of payment by cession. What rights are acquired by the creditor in this form of payment as distinguished from dation on payment