【单选题】听力原文: Centuries ago, during the Middle Ages, most of the land in Europe was owned by many different kings and queens, princes and princesses, and lords and ladies. They did not all get along. They wer...
A.
Kings and queens, princes and princesses, and lords and ladies built castles in order to get more land.
B.
Around the outside of a castle, a moat was dug, which was often filled with water.
C.
A castle was built behind a thick and high stonewall, which was strong enough to stand the possible attack of enemies.
D.
If a drawbridge was pulled up, there was no way for people to enter the castle.