单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.

Why does the Big Ben enjoy such a reputation

A.Because of its location.
B.Because of its weight and accuracy.
C.Because of its designers.
D.Because of the delicate design and its historical significance.