Before Undergoing Sur?gery That Could Cause Death,Greg,a Violinist,gives His Concert

Before undergoing sur?gery that could cause death,Greg,a violinist,gives his concert violin to Holly.The surgery is successful,and Greg does not die.The gift of the violin is

A) not revoked because it was a gift causa mortis.
B) not revoked because it was a gift inter vivos.
C) revoked because it was a gift causa mortis.
D) revoked because it was a gift inter vivos.