In which situation would you most likely use the usted form?
Answer : B.) con profesores.
Explanation : The second formal person in Spanish is "usted", what is said to show respect to the person you are speaking. Therefore is used with older people, teachers, police, etc. 
Hope this helps!
 
 
 
        
                    
             
        
        
        
Answer:
Who are the narrators of Don Quixote?
Explanation:
 
        
                    
             
        
        
        
Los muchachos fueron al baile con Paco anoche
Yo siempre saco buenas notas en las clases de ciencias.
Nosotros fuimos a la playa con Ana ayer.
Yo studio mucho en la biblioteca todos los días.