What is the appositive phrase in this sentence?

jacob marley, scrooge’s old business partner, tried to warn scrooge of his miserable fate.

a. jacob marley and scrooge
b. tried to warn scrooge
c. of his miserable fate
d. scrooges old business partner

Scrooge's old business partner

Because it is describing the phrase in greater depth and it makes sense if it's taken away

d. something is either unique or not unique.

Explanation:

Although this expression is very common ("the most unique"), if we take the literal definition of the word unique, it doesn't really make much sense. That because unique means: " being the only one of its kind; unlike anything else." So in the end, you're either unique or not unique. You can't be a little unique or too unique because it doesn't fit the meaning of the word literally. The expression, though, is used to emphasize the uniqueness of the person.