Three Brothers Own a Piece of Land in Joint Tenancy

Three brothers own a piece of land in joint tenancy. Which of the following would take place if Tim died three years before the death of Jack, leaving Harry as the sole survivor?

A) Harry would own the land entirely and the heirs of Tim and Jack would have no claim to the land.
B) Tim's share in the land would be equally distributed between Jack and Harry, and Harry's share would be transferred to his heir on his death.
C) Tim and Jack's shares would be distributed to their heirs respectively on their death.
D) Harry would have to surrender the entire land to the government since the joint tenancy was no longer valid.
E) Tim and Jack's shares should be distributed to those as described in their respective wills.