9. A was adopted by X, the owner of a local chicken and beer restaurant. For several years, X’s business had been struggling. To keep the business afloat, X incurred several loans from banks in the total amount of PHP 2.5 million. One day, X figured in an accident which caused his death, leaving A as his sole heir. Upon inventory, X’s estate was appraised at PHP 1 million. Subsequently, the estate of X paid the banks the entire value of the estate in the amount of PHP 1 million. But the banks still sued A for the unpaid portion of PHP 1.5 million. Will the action prosper? Decide with reason(s).