What will the following C code do?

[answerhappygod]

char * strrchr(const char *s, int c )
char ch = c;
char *sc;
for(sc = NULL; ; ++s)
if(*s == ch)
SC = 9;
i f (*s =='\O' )
return (( char *) s);
a) find last occurrence of c in char s[ ].
b) find first occurrence of c in char s[ ].
c) find the current location of c in char s[ ].
d) There is error in the given code