#include <stdio.h>

int main() {
   char choice ;

   printf("Make a selection [a, b, c, d or f]: ") ; 
   scanf("%c", &choice) ;

   switch (choice) {

      case 'a':
         printf("Good choice!\n") ;
         break ;
      case 'b':
         printf("b is my favorite\n") ;
         break ;
      case 'c':
         printf("c is a popular selection\n") ;
         break ;
      case 'd':
         printf("Sorry, we are fresh out of d\n") ;
         break ;
      case 'f':
         printf("Not a good day for f. Try something else.\n") ;
         break ;
      default :
         printf("Please pick one of the choices!\n") ;
   }

   return 0 ;
}