los libros or in another words "the books"
Answer:
It's C and D (The last two)
Explanation:
Because "has" and "he" are directed to a person, in this case "has" goes to someone you are talking to and "he" to yourself.
And yet "hay" or "había" does not go to someone in particular.
El colectivo de diente es dentadura.
To calentar la comida you use el horno