Answer the problem below by citing the appropriate article/s;

1. BBM sold his 2nd-hand car to Leni for P200,000. They agreed that BBM will pay half of the purchase price, or P100,000, upon delivery of the said car to Leni, and the balance of P100,000 shall be paid in five (5) equal monthly installments of P20,000 each. The car was delivered to Leni, and she paid P100,000 to BBM. Shortly thereafter, the car was stolen from Leni's garage without her fault and was never recovered. Is Leni still legally bound to pay BBM the unpaid balance of P100,000? Explain your