Explanation:
I translated it for you, it's not entirely authentic, but hopefully it's a little helpful..
Answer by JKismyhusbandbae: A) Porque mejoran las relaciones sociales.
Why: "Mucho se ha hablado de que comer en familia es un asunto cultural, muy común en las sociedades latinoamericanas." They are eating for more sociable relationships with family.
the appropriate defintite article for mochilas is las
las mochilas