Which of the following is the best description of the design of the national flag?
A.
four stars surrounding a star on a red foundation
B.
four small stars surrounding a big star on a red foundation
C.
four small stars and a big star on the basis of Tian'anmen Rostrum
D.
four small stars and a big star on the basis of Tian'anmen Rostrum surrounded by a wheel gear and ears of wheat