discarate mathmiatic

please ..

answer step by step and explan

a. Exercises 11.3 -Tree Traversal 13. Suppose that the address of the vertex v in the ordered rooted tree T is 3.4.5.2.4. At what level is v? 5 b. What is the address of the parent of v? What is the least number of siblings v can have? d. What is the smallest possible number of vertices in Tif v has this address? e. Find the other addresses that must occur? c