Anita Offered to Sell Her Condo to Bill

Anita offered to sell her condo to Bill.Before Bill could accept,one of the parties was killed in a car accident.The remaining party wishes to go through with the contract.Which of the following best describes this situation?

A) The death of either party terminated the offer.
B) If Anita died,Bill can still accept the offer; Anita's estate will be liable for the contract.
C) If Bill died,Bill's heirs can still accept the offer.
D) If Anita died,the offer is terminated; if Bill died,Bill's heirs can still accept the offer.