Answer:
B) all family members following family rituals
Step-by-step explanation:
A) children playing competitive sports
If the children are forced, which sometimes happen, it does not make the family stronger.
B) all family members following family rituals
This is something that the entire family is going to do together, so yes, it does strenghten the family. This is the correct answer.
C) family members planning weekend activities individually
If each one does things individually, it does not strengthen the family.
D) parents practicing authority over children
The parents should educate the children, yes, but when there is no fun, no care, just authority, so just parents practing authority is not enough strenghten the family.
E) encouraging all family members to be materialistic
It is good to have the newest cell-phone or videogame, but if this is the "reason" of your life, it is not going to strengthen the family.