阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并将答案写在答题卡上的相应位置。

Jacksonville is the largest city in Florida and has many shopping malls(购物中心) to meet different tastes for tourists and guests to shop. Here are some great places you can shop in Jacksonville.

Gateway Town Centre

Gateway Town Centre is one of Jacksonville's oldest shopping malls, with many exciting stores! Gateway Town Centre is at 5184 Norwood Avenue and owns a mixture of retail boutiques(零售时装店), like Foot Locker and Ashley Stewart. You can visit the Gateway Town Centre Monday through Saturday from 10:00 a.m. to 9:00 p.m., and Sundays from noon to 6:00 p.m.

St Johns Town Centre

The newest shopping centre in the city is St Johns Town Centre. This centre has all your national favourites like Dillard's, Barnes & Noble and Target as well as a great many restaurants. St Johns Town Centre is open from 10:00 a.m. to 9:00 p.m. Monday through Saturday, and 11:00 a.m. to 6:00 p.m. on Sundays.

Regency Square Mall

On 9501 Arlington Expressway stands the Regency Square Mall. The children like riding on the mall's minitrain while adults like to shop and socialise. Movie fans will like knowing that the Regency Square Mall has a 24-screen AMC theatre. You can visit this mall from 10:00 a.m. to 9:00 p.m. Monday through Saturday, and Sundays from noon to 6:00 p.m.

River City Marketplace

　　River City Marketplace in Jacksonville is the largest shopping mall in the city with 70 shops which comprise such stores as Lowe's, WalMart Supercentre, PetSmart and Old Navy. All these shops can be found at the openair square. The mall's 14-screen Hollywood theatres are a great attraction for movie lovers. River City Marketplace's hours of operation are 9:00 a.m. to 9:00 p.m. Monday through Saturday, and 11:00 a.m. to 7:00 p.m. on Sundays.

21. What can we learn about the Gateway Town Centre?

A. It is the oldest mall in Jacksonville. B. It opens for only half a day on Sundays. C. It is interesting to shop there on Sunday mornings. D. It has all kinds of clothes for the young.