Which of the following statements about the passage is true？A．An example of a football tea

Which of the following statements about the passage is true？

A．An example of a football team is used in talking about "pull up your socks".

B．Sock some money away probably came from people hiding their savings in a sock instead of putting it in a bank.

C．In talking about "pull up your socks", the author uses an example of a girl planning to make a holiday trip.

D．In talking about "sock some money away", the author uses an example of a political leader.

请帮忙给出正确答案和分析，谢谢！