Question: After the 3 values: 3 0 , 4 5 , and 4 0 are inserted into an empty AVL tree, what action is needed to

After the 3 values: 30,45, and 40 are inserted into an empty AVL tree, what action is needed to maintain the AVL tree?
Question 36 options:
a double rotation with right rotation at 45, and left rotation at 30
a double rotation with left rotation at 45, and right rotation at 30
a single rotation to the left at node 30
a single rotation to the right at node 30

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