阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
The following are to help you find the train tickets most suited to your needs when you are in the UK.
The Student Railcard
The Student Railcard (or Young Person Railcard) is a great way to keep travel costs down. The 1/3 off train tickets can go a long way in helping you save, ideal for travelling to work, university or college. Whether you have an early morning lecture or you’re rolling home in the early hours after a night out, you can still get 1/3 off on all passenger rail services within the UK! The only requirement for this Railcard is that you need to be within the ages of 16 and 25, and able to prove it with ID．
The Family &Friends Railcard
Up to four adults and four children can use the card on big days out. Adults get 1/3 off train travel and children get a 60% discount on their fares with a Family &Friends Railcard. Children are classed as being between ages 5-15.
It can be purchased and used within 16 counties in the South East, even including the whole of London! Just remember that all users must stay together while travelling—in the same carriage and on the same train.
The Millennial Railcard
The Millennial Railcard is now available across the UK, helping “millennials” to save money on their day-to-day train ticket fares while encouraging more leisurely train travel on days off.
It is available for all who are between the ages of 26 and 30, regardless of peak or off-peak times. Costing just £30, the new Railcard can be used across the UK!
The Saver Railcard
Half off train tickets. That’s right, half! Pick up the new 16-17 Saver Railcard and let the savings pile up. It costs just £30 for the year or up until the date of your 18th birthday, making it one of the best value Raileards considering the kinds of discounts you can get.
The Saver Railcard can be used throughout the UK rail network. However, it is currently only available digitally. You need download the Railcard app and show ticket inspectors during ticket checks.
1．Which type of Railcard can only be used in part of the UK?
A．The Student Railcard. B．The Family& Friends Railcard.
C．The Millennial Railcard. D．The Saver Railcard
2．What is the age range of the people using the Millennial Railcard?
A．5-15. B．16-17
C．16-25. D．26-30
3．What is special about the Saver Railcard?
A．It is the cheapest among the four Railcards. B．It requires its owners to download an app.
C．It can be used during peak times. D．It requires its buyers to prove their ages.
