Question: which pseudocode for the binary tree method isLeaf() returns true if the node is a leaf and false if not. a. return ( leftChild >

which pseudocode for the binary tree method isLeaf() returns true if the node is a leaf and false if not.

a.

return ( leftChild > rightChild) AND ( rightChild < leftChild)

b. return ( leftChild == null) OR ( rightChild == null)

c.

return ( leftChild > rightChild ) OR ( rightChild < leftChild )

d.

return ( leftChild == null) AND ( rightChild == null)

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