1. All except one are the sources of obligations

1. Contract
2. Quasi-delicts
3. Law
4. Fault or Negligence
5. Quasi-contract
6. Crimes

2. Distinctions between contract and quasi-contract

1. None of the above
2. Presence/Absence of consent
3. Mutual determination of terms/Default rule (law imposes the rules)
4. All of the above

3. An agreement is a contract

1. When there is meeting of minds between two persons
2. Because all contracts are agreement
3. When the consequence is a legally demandable obligation