Exaggeration - The girl took 3 years in the mall just for an example. The sentence is exaggerating how long she took in the mall.
I think the answer to your question is C
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:
shows how the word is being pronounced
