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).
 
        
                    
             
        
        
        
Can you please put the sentences on so I can answer. 
        
             
        
        
        
division into two sharply contrasting groups or sets of opinions or beliefs.
"the polarization of society between rich and poor"
2.
PHYSICS
the action of restricting the vibrations of a transverse wave, especially light, wholly or partially to one direction.
"changes in polarization of light passing through the atmosphere"
hope this helps 
 
        
                    
             
        
        
        
1. Whenever I hear that music, it reminds me of the time we read about the Titanic
2. Many people who heard that music did not survive. I get sad listening to it.
4. It was such a tragedy that could've been avoided