Alvin, Boris, Claus and Daria are the joint tenants of a property. Daria sells her interest to Xander. Which of the following statements is TRUE?

1. (1)The sale destroys the joint tenancy and Alvin, Boris, Claus and Xander now hold the property as tenants in common with each other.
2. (2)Daria cannot legally dispose of her interest without the permission of the other joint tenants, as it would affect the interests of the others.
3. (3)Alvin, Boris and Claus remain joint tenants with each other, but become tenants in common with Xander.
4. (4)None of the above