Answer: Do you think that this was due to urban population growth?
Explanation:
Ella _<span>les</span>_ da los libros a los chicos.
c .es would be my answer , but b also applies if you are talking to him directly and saying it as a compliment , c would be if you are just talking about him to someone else
Me llamo. como esta usted. estoy muy bien. como estas. mucho gusto. hasta mañana. el gusto es mio. nos vemos.