以下选项中不能正确把c1定义成结构体变量的是

A．typedef struct
int red:
int green:
int blue;
COLOR;
COLOR c1;
B．struct color c1
int red
int green:
int blue;
;
C．struct color
int red ,
int green :
int blue :
)cl;
D．struct
int red;
int green;
int blue
c1 ;