The set $\mathbf{T}$ represents various traversals over binary tree. The set $\mathbf{S}$ represents the order of visiting nodes during a traversal. Which one of the following is the correct match from $\mathbf{T}$ to $\mathbf{S}$ ?

The standard binary tree traversal definitions are:

1. Inorder Traversal (I): Visit the left subtree, then the root node, and then the right subtree ($L \to \text{Node} \to R$). Hence, I matches with L.

2. Preorder Traversal (II): Visit the root node, then the left subtree, and then the right subtree ($\text{Node} \to L \to R$). Hence, II matches with M.

3. Postorder Traversal (III): Visit the left subtree, then the right subtree, and finally the root node ($L \to R \to \text{Node}$). Hence, III matches with N.

Therefore, the correct mapping is I – L, II – M, III – N, which corresponds to option (A).