Consider the Operation of Deleting the Root of a Binary

question 10

Multiple Choice

Consider the operation of deleting the root of a binary search tree.If the root is a leaf,then

• A) the method doing the deletion should throw an exception
• B) the root should be replaced with a dummy place-holder node
• C) the reference to the root of the tree should be set to null
• D) the element stored in the root node should be replaced with null,or with 0.