During the Lifetime of Jack and His Wife,they Acquired Assets

During the lifetime of Jack and his wife,they acquired assets individually and as members of former marriages.During their marriage,they acquired more joint property,but his wife left all of her estate to her children.Upon his wife's death,Jack would have received the other half of their

A) property owned as joint tenants with right of survivorship.
B) community property,if residents of a community property state.
C) property owned as tenants by the entirety.
D) all of the above.
E) only A and C.