In 2005,Jonah Sold a Building to His Two Married Sons

In 2005,Jonah sold a building to his two married sons: Alan and Charles.In 2015,Charles was thinking of severing the joint tenancy,but before anything was said or done,Charles and Alan both drowned in a boating accident.Charles died immediately,but Alan died two months later,never having regained consciousness.Charles had willed his interest in the property to his wife and Alan had willed his to his son.On these facts,which of the following is false?

A) As soon as they made the wills, the parties became tenants in common.
B) Charles's wife and Bert's son are now tenants in common.
C) Charles's wife and Alan's son are now joint tenants.
D) Alan's son is entitled to the whole property.
E) Charles's wife is entitled to the whole property.