Complete problem $6\mathrm{.}19$b$.$Only provide the Pep$/9$ program file and code. Don't provided the C program. Paste your completed Pep$/9$ program file here. Paste you code here

$//$Code for $6\mathrm{.}19$b

#include

char toLower$($char ch$)\{$

if $(($ch $>=$A$)$ && $($ch Z$))\{$

return ch $+$a$-$A$$;

$\}$

else $\{$

return ch;

$\}$

$\}$

int main $()\{$

char myChar;

scanf$(\%$c$,$ &myChar$)$;

printf$(\%$c$,$ toLower$($myChar$))$;

return $0$;

$\}$