Which of the following is not the characteristic of the palace lanterns？

A.They are mainly made of fine wood as the skeleton and decorated with spun silk and glass.

B.They are decorated with colored drawings or patterns in surface of the lanterns.

C.They are as common as the normal colored lanterns.

D.They deserve elaborate adornment, in order to show the wealth and luxury of the emperor.

正确答案：They are as common as the normal colored lanterns.