Look at the image, read, and choose the option with the correct preposition and article that match the image. A la familia le encanta jugar _ juegos de mesa cuando tienen celebraciones. a el
a la
a los
a las

A Los

Explanation:

So for this problem the easiest way for me personally is to to process of elimination. The first thing we need to do is to rewrite the whole thing in English so the sentence means The family loves to play board games when they have celebrations. Now that we know what the sentence means we will start to take away all of the answers that aren't correct so we can see in the picture and in the sentence the words that describe the family are masculine, so we can take all of the feminine preposition and articles out of the choices so now we have a el and a los. El is singular and Los is plural and it is a family with more than one person so the final answer would be a los.