Answer:
I'm pretty sure the correct answer for this one is the last option "a quien entrevistaron ayer" is the one that makes more sense when putting together.
Explanation:
Hope this helps!
Argentina y Guatemala están en centro/sur America.
España esta en el otro lado del mundo.
I believe that it would be B (reloj) since it is talking about how there is a window, a door and then a clock in a classroom.
It is also giving you the masculine singular form indicating that it can only be reloj.
