4. Answer the questions below about the following tree, using the letters that label the nodes: a. Which node is the root? b. Which node is the parent of F ? c. Which node(s) are the children of H ? d. Which node(s) are the ancestors of M? e. Which node(s) are the descendants of T? f. Which node(s) are the siblings of S ? of H ? g. What is the height of the tree? h. In what order are the nodes visited by a breadth-first traversal? i. In what order are the nodes visited by a depth- first traversal?.