$26)$ If a new element is added to an ArrayList whose internal array if already full,

A$)$ the new element is not added, and nul$1$ is returned

B$)$ A new, bigger internal array is created, the elements are moved to the new array, the old internal array is deleted and then the new element is added

C$)$ the new element is not added, and $-1$ is returned

D$)$ the add method throws an exception