以下程序的功能是从在屏幕上显示一张如下所示的菜单： ...

以下程序的功能是从在屏幕上显示一张如下所示的菜单： *****Time***** 1 morning 2 afternoon 3 night Please enter your choice: 程序根据输入的时间序号显示相应的问候信息，选择1显示“Good morning”，选择2显示“Good afternoon”，选择3显示“Good night”，其他选择显示“Selection error!” 程序运行示例1： *****time***** 1 morning 2 afternoon 3 night Please enter your choice: 2↙ good afternoon 程序运行示例2： *****time***** 1 morning 2 afternoon 3 night Please enter your choice: 6↙ Selection error! 将下面程序填写完整 #include ＜stdio.h＞ void display(); void choice(int x); int main() { int n; _____________; scanf("%d", &n); ____________; return 0; } void display() { printf("*****time*****\n"); printf("1 morning\n"); printf("2 afternoon\n"); printf("3 night\n"); printf("Please enter your choice: "); } void choice(_____________) { switch (x) { case _____________: printf("good morning\n"); break; case _____________: printf("good afternoon\n"); break; case _____________: printf("good night\n"); break; default: printf("Selection error!\n"); } }

A、display() choice(n) int x 1 2 3

B、display() choice(n) int x '1' '2' '3'

C、display(n) choice() int x 1 2 3

D、display(n) choice() int x '1' '2' '3'