I believe that in the blank should go "sabemos"
I hope I'm correct.
Answer: Hay pocos protagonistas y un argumento simple, podemos adivinar que es un cuento corto.
Explanation:
Answer:
the literary device used on this occasion is the metaphor
Explanation:
Rhetorical figure of thought through which a reality or concept is expressed through a different reality or concept with which what is represented has a certain relationship of similarity.
I hope I've helped ;)