[单选题]

（31）有以下程序
#include <stdio.h>
main()
{ char a[30],b[30];
scanf("%s",a);
gets(b);
printf("%s/n %s/n",a,b);
}
程序运行时若输入：
how are you? I am fine<回车>
则输出结果是
A．）how are you? B）how
I am fine are you? I am fine
C．）how are you? I am fine D）row are you?

（31）有以下程序#include <stdio.h>main(){ char a[30],b[30];scanf("%s",a);gets(b);printf("%s/n %s/n",a,b);}程序运行时若输入：how are you? I am fine<回车>则输出结果是A．）how are you? B）howI am fine are you? I am fineC．）how are you? I am fine D）row are you?