A month ago, Sissie, 17 years old, orally sold her bicycle for P3,000 to Ace, her neighbor, who was only 16 years old. Lola Flora, the mother of Sissie, learned about the sale by Sissie of her bicycle, and demanded that Sissie give her the amount she received. Sissie, thus gave the proceeds of the sale to her mother who spent the same for the familys daily expenses. General Borja, the father of Ace, also learned about the purchase by Ace of the bicycle when he saw it parked at their door and began using it almost daily since Ace bought it, Based on the foregoing facts, what is now the status of the sale entered into between Sissie and Ace?

a. Unenforceable because both parties were incapacitated to enter into the contract.

b. Unenforceable because the sale was not in writing.

c. Validated from inception because of the subsequent acts of the parent of the parties.

d. Voidable because while Ace was only 16 years old, Sissie was nearing the age of majority which is 18 years.