III. 3.1. Mr Dowes Php 50,000.00 to Mr. C., A as guarantor promise to pay the debt of Mr. D. if Mr. D failed to pay the same. Is the promise of A enforceable? 3.2 Without making an inquiry A bought a parcel of land with a total land area of 400 sq. meters from B who is not a registered owner of the land. May A be considered as purchaser in good faith? 3.3 X rendered service to Y, but the amount of compensation to be paid did not specify in the contract. How much compensation shall be paid by Y? 3.4. A sold his horse name "barako to B under written contract, however B though A is selling his horse name "justice". Can B sought for reformation of the contract? 3.5 A is a married man in Iloilo City fall in love again to a beautiful single lady from Navotas City B. A and B agree to entered into contract of marriage at San Roque church. Is the married of A and B valid, Why