Write the best title lines for the functions that are called by the following main program. Do not supply the blocks for the functions.

int main() { char x = '1', y = '2', z = '3'; string a[5] = {"Amy", "Ben", "Catherine", "Denny", "Edward"}; bool arr[3] = {true, false, true}; double c = 0.1; c = fun(z, y); // (a) sets c to the difference cout << welcome(a[3], "Hello"); // (b) print out Hello Denny change(a[2], 'h', 'y'); // (c) change a[2] to "Cathy" cout << a[2] << endl; // print Cathy if (reset(arr, 3 == 3)) // (d) sets the array to be all true cout << addOn(addOn(a[0],x),y); // (e) function adds on a character; print Amy12 return 0; }