I think it would be the conflict.
B: Chef
Explanation:
If you mean the cooker its Cheff not Chef
Chef-Chief
Cheff-Cooker
Not only should the children should be taking care of the Grandparents. Everyone should be taking care of everyone. That's how family works. They should be because, the Grandparents would (should) do the same.
Answer:
Tournament
Explanation:
Just did the quiz hope it helped!