What is in-order traversal?left subtree is visited first, then the right subtree and finally the root nodethe root node is visited first, then the left subtree and finally the right subtreethe left subtree is visited first, then the root and later the right sub-tree

Which traversal order visits the root node first, followed by the left subtree and then the right subtree?Group of answer choicesPostorderInorderPreorderLevel order

What does an inorder traversal of a binary tree involve?Select one:a. Visiting each node twice, first the left and then the right child.b. Visiting the right subtree, the node itself, and then the left subtree.c. Visiting the left subtree, the node itself, and then the right subtree.d. Visiting the node itself, the left subtree, and then the right subtree.

In preorder traversal of a binary tree the second step is ____________Select one:a. traverse the right subtreeb. traverse the left subtreec. traverse right subtree and visit the rootd. visit the root

Which traversal technique visits the tree level by level, from left to right?OptionsLevel-order traversalIn-order traversalPre-order traversalPost-order traversal

What is in-order traversal?