On January 15, 2023, y gave Carina a diamond ring worth P250,000.00 in consideration of their marriage to be held on February 14, 2023. Bernard died on Feb. 7, 2023 due to a vehicular accident. y's parents filed an action to recover the ring from Carina who refused to return the ring contending that the donation has already been perfected, hence she already became the owner of the ring. Will the action to recover the ring filed by Bernard's parents prosper? Why or why not? Explain well.