Explain and answer briefly the following questions:

2. Rachel owned a house rented by Monica. Rachel sold the house to Phoebe, and Phoebe agreed to pay the balance of the price as soon as Monica leaves the premises. Phoebe was to take care of seeing to it that Monica vacated the house. Rachel now says that the contract is void because it is potestative on Phoebe's part. Is Rachel correct? 3. Amy obtained a loan from Bernadette in the amount of Php 50,000 payable on May 10. As security for his debt, Amy mortgaged her car to Bernadette. The car, however, was substantially damaged, without the fault of Amy. What rights if any, does Amy have under the law? May Bernadette demand payment from Amy before August 10