What is the appositive in this sentence tiny tim's father bob cratchit works for scrooge?

In the sentence: " Tiny Tim's father, Bob Cartchin, works for Scrooge." the appositive is Bob Cartchin because it renames Tiny Tim's father.
Appositive is a noun, a noun phrase, or a noun clause that renames a noun that comes just before them.
In the sentence above, Tiny Tim's father was renamed by the noun "Bob Cartchin".

If your in connexus the answers are:
1.PartA-a
partB-b
3.c
4-b
5-d
6-d
7-d
8-d
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