Which annual tennis tournament, held in New York City and played on hard courts, is the final Grand Slam event of the calendar year?

• A Wimbledon
• B French Open
• C Australian Open
• D US Open ✓

The US Open, first played in 1881, is held at the USTA Billie Jean King National Tennis Center in Flushing Meadows, Queens, and features night sessions under the lights of Arthur Ashe Stadium.