A licensee listed a property that had an unfinished garage. The licensee received an offer subject to the garage being finished. Was a contractual obligation created?

a$.$ Yes, because both the seller and buyer offered to enter into a contract.

b$.$ Yes, because a definite and certain offer was made by the buyer.

c$.$ No$,$ because the seller has not accepted the offer.

d$.$ No$,$ because contractual obligations must be written and notarized.