So I have this code here, and i am trying to make it so that if you

input anything besides the given letter inputs, it says “invalid selection” however it is not working. Is the squiggly bracket in the wrong place? Do I put the invalid selection somewhere else in the code?

#include <stdio.h>
void printHelp () {
printf (“\n”);
printf (“a: a(x) = x*x\n”);
printf (“b: b(x) = x*x*x\n”);
printf (“c: c(x) = x^2 + 2*x + 7\n”);
printf (“q: quit\n”);
}
void a(float x) {
float v = x*x;
printf (” a(%.2f) = %.2f^2 = %.2f\n”, x, x, v);
} // end function a
void b(float x) {
float v = x*x*x;
printf (” b(%.2f) = %.2f^3 = %.2f\n”, x, x, v);
} // end function b
void c(float x) {
float v = x*x + 2*x + 7;
printf (” c(%.2f) = %.2f^2 + 2*%.2f + 7 = %.2f\n”,
x, x, x, v);
} // end function c
int menu () {
char selection;
float x;
printHelp ();
scanf (“%s”, &selection);
if (selection == ‘q’) return 1;
scanf (“%f”, &x);
if (selection == ‘a’) a(x);
if (selection == ‘b’) b(x);
if (selection == ‘c’) c(x);

// end function menu
else
{printf(“Invalid Selection \n”);} //If you do not select a valid letter this message will display
return 0;
}
int main() {
while (menu() == 0);
printf (“… bye …\n”);
return 0;
} // end main