听一段材料，回答下面几个小题。
Why was the Mesa Verde National Park built?
A.To attract more visitors.
B.To earn money.
C.To protect the culture of ancient Native Americans.
What language do the words“Mesa Verde”belong to?
A.English.
B.Spanish.
C.French.
How many ruins were discovered in all?
A.One.
B.Two.
C.Three.