2. X Unilaterally promised to sell to Y his car for P50, 000.00 within a period of one month. Y accepted the promise. On the 16th day, Y received a note from X telling him that he is withdrawing the promise. (a) Can Y hold X liable for damages if he persists on withdrawing the promise? Why? (2.5%) (b) Assume that Y gave an option money when he accepted the promise, and on the 16th day, he backed out, can X compel him to buy the car? Explain. (2.5%)