Good day Maam/ Sir. Please answer the questions comprehensively. I hope it is well explained and long cause our prof requires that. Thank you so much.

1.A, B, and C, are jointly liable to D in the amount of P15,000.Subsequently, D assigned his credit to C in consideration for goods sold by C to D.Give the effects of the assignment.Explain your answer.

2.On Jan. 20, S agreed to sell his parcel of land to B for P50,000 should B lose a case involving the recovery of another parcel of land.On April 10, S sold his land to C.B lose the case on Dec. 4.Who has a better right to the land, B or C?Discuss your answer.

3.S sold to B on July 5 a horse named Jack to be delivered on July 20.However, on July 15, S sold again and delivered the horse to A.Who has a better right to the land?Explain your answer.

4.E leased the apartment of R for P8,000 a month to be paid in advance during the first week of every month.The obligation of E, as lessee, is to pay the stipulated rent.The obligation of R, as lessor, is to maintain E in the peaceful possession of the apartment leased.If E violates his obligation, what are the rights and remedies of R?Discuss your answer.