Which of the following could be the main idea of t...

Câu hỏi: Which of the following could be the main idea of the passage?

A. Grandparents are outdated people in their families.

B. Young people now do not concern much about their grandparents.

C. Grandparents are not interested in telling stories about their life in the past any more.

D. Young people are too busy to take care of their grandparents.