Answer:
One similarity between Sci-Fi and Opera is that both include storytelling
Two differences between Sci-Fi and Opera are
1. Sci-Fi is usually more science based while Opera is more romantic/emotion based
2. Opera includes dramatic emotional songs while Sci-Fi usually doesn't 
Explanation:
 
        
             
        
        
        
rauschenberg merged the realms of kitsch and fine art, employing both traditional media and found objects within his "combines" by inserting appropriated photographs and urban detritus amidst standard wall paintings.
 
        
                    
             
        
        
        
I don’t know what you’re saying
        
                    
             
        
        
        
Answer:
Option D is correct : They were both sung in the language of the audience.