Answer:
The sentence that is an example of indirect characterization is:
D.  I am quick to say thank you and return the favor if someone does something nice for me.
Explanation:
Options A through C use direct characterization. People are being described directly, explicitly, so to speak, through the use of adjectives - "frightened", "childish and immature", "surprised and overjoyed". However, letter D makes use of indirect characterization. Instead of using adjectives, the speaker is describing himself through his actions. When he says he thanks others and returns the favor, we can indirectly infer that he is grateful.
 
        
             
        
        
        
The correct answer to this open question is the following.
There is no question here. It is just a statement.
Furthermore, you did not specify if this statement belongs to a novel, a play, a movie, or what?
It is so difficult to help you without the question and the proper references.
However, trying to help you, we can infer that you are talking about the ghost in the play "Hamlet," written by English author William Shakespeare.
Being that the case, yes, the appearance of the ghost helps create an eerie mood and grabs the audience's attention. Shakespeare, being the expert writer he was, knew how to create suspense in the readers. As the ghost does not speak, this adds mystery and suspense to people's minds. The audience would probably want to know more about the ghost in the king's clothes and ist purpose to appear. Most people could think that the ghost is there because it has issues to resolve. 
 
        
             
        
        
        
Answer:
“Then I thought of all the Christmas and birthday gifts my grandmother had given me and I got out of the car, guilty as usual.”
Explanation:
Guiltiness is a internal conflict and this sentence also showed the reason to his guilt.
 
        
                    
             
        
        
        
<span>“He counted his goodly coppers
and cauldrons, his gold and all his clothes, there was nothing missing; still
he kept grieving about not being in his own country, and wandered up and down
by the shore of the sounding sea bewailing his hard fate.” He had accumulated a lot of wealth but still missed his home.</span>