Answer:
D.) It is used as a verb to describe the main action of the sentence.
Explanation:
Shrieking is a verb because it is an action, it wouldn't be a verb if it was shrieked but in this case it is ending with <em>-ing</em>, therefore the action is taking place at the moment.
Hope this helps and if the explanation is unclear, I apologize.
 
        
                    
             
        
        
        
Answer:
A combination of a verb and an adverb or a verb and a preposition, or both, in which the combination has a meaning different from the meaning of the words considered separately : "Catch on " is a phrasal verb meaning of understand.
 
        
             
        
        
        
Punctuation, grammar, and spelling
        
             
        
        
        
Answer:
C.  The credit for the decorations is all hers'.
Explanation:
The correct possessive pronoun would be hers.
You don't need the apostrophe (') with possessive pronouns.