Answer:
in my opinion it's letter c
 
        
             
        
        
        
1. The answer is b.) whom. 
2. The answer is b.) sudden. 
        
                    
             
        
        
        
They are totally different 
Expiation 
- They are very different because teacher teaches them like a noob 
And Students remarks their own test like me
        
             
        
        
        
<span>d. object of a preposition
</span><span>All entries will be distributed for judging
GERUND - .</span>object of a preposition
NOT:
a. predicate nominative
b. direct object
<span>c. subject</span>