The answer is C. The question translates to "How many books are there?"
The correct answer is A. Hay un profesor con el estudiante.
The sentence says - There is A professor with THE student. In Spanish, the article A is either UN or UNA (depending on the gender) for singular, and UNOS and UNAS for plural. The article THE is either EL or LA, depending on the gender.
8. D "explicar" means explain
9. C
11. D "Levantan" means get up
12. A "maquillaje" means makeup which you find at a beauty salon
14. B "Yesterday Carlos Learned to Ski"
15. C
16. A "cash a check"
