Hmmm.. That looks right to me. Sometimes, teachers will use calmada instead of tranquila. You can ask if that is the case here. Otherwise its possible that the teacher made a mistake. If you are still confused, I would just as whoever your teacher is. I'm sure its a mistake on their part :)
Good luck!!
Start with: 11a into 17b into 19a into 13b into 18a into 14b into 15a into 12b into 17a.
Hope this helps and makes sense to you. Best of luck.
No se que es esto y tu no sa ves de que tu ablas
I am pretty sure that the answer is a