单项选择题

当运行以下程序时,从键盘输入AhaMA(空格)Aha
#include
main( )
char s[80],c=’a’;
int i=0;
scanf("%s",s);
while(s[i]!=’\n’)
if(s[i]==c)s[i]-32;
else if(s[i]==c-32)s[i]=s[i]+32;
i++;
puts(s);

A)ahaMa
B)AbAMa
C)AhAMa[空格]ahA
D)ahAMa[空格]ahA