【单选题】Big BenBig Ben is the nickname for the Great Bell of the striking clock at the north end of the Palace of Westminster in London and is usually extended to refer to both the clock and the clock tower. ...
A.
Big Ben is a four-faced clock.
B.
People have different ideas on the origin of the bell's nickname.
C.
Traditionally, British radio and television stations air the chimes of Big Ben to welcome the start of the New Year.
D.
The bells will be totally silent until 2021 because of the renovation.