Sue Receives a $5,000 Engagement Ring from Tau,but Unfortunately Tau

Sue receives a $5,000 engagement ring from Tau,but unfortunately Tau dies before the marriage can occur.Tau's parents,as his heirs,want the engagement ring,but Sue wants to keep it.In most states,________ is/are entitled to the ring because ________.

A) Tau's parents;the ring was a conditional gift
B) Sue;Tau (the donor) is dead
C) Tau's parents;Tau did not state that Sue was to have the ring if he were to die
D) Sue;the engagement was not broken by mutual agreement or by Sue