¿Cuáles son las diferencias en los papeles que asumen las comunidades y las familias en las diferentes sociedades del mundo?

Translation:  What are the differences in the roles that communities and families take in the different societies of the world?

I am not 100% sure of the answer, but maybe the translation will help you to answer it better.

Best of luck!

answer is a: las

explanation:

the reason for this answer is becouse it's a plural frase which talks more then one thing