Is this what you need?
JEM's full name was Jeremy Atticus Finch
There is no "following sentence" so I don't think you're ever gonna get an answer...
Answer:
b. Adjective clause
Explanation:
The subordinate clause in this sentence is "who bought me a puppy for my birthday" and it functions as an adjective because it modifies the noun phrase "the one" (like adjectives and adjective phrases, adjective clauses describe or add information about a noun element in the sentence).
It gives the idea that love can be transformed and it can get hard but the concept is forever. The shape changes and color changes but it is still a rose.