单项选择题
有以下程序
#include<stido.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 I am fine are you
B．how I am fine
C．how are you I am fine
D．row are you