In the sentence: " <span>Tiny Tim's father, Bob Cartchin, works for Scrooge." the appositive is Bob Cartchin because it renames Tiny Tim's father.
</span>Appositive<span> is a noun, a noun phrase, or a noun clause that renames a noun that comes just before them.
</span>In the sentence above, Tiny Tim's father was renamed by the noun "Bob Cartchin".
If you assume something about someone, you could be acting on false information and that can lead to trouble.
I know I'm rather late but the answer is 8 and 13. (This question requires some background... so yea.)
it is often written by writers who speak languages other than english