Write a C program to compute the cost of shipping luggage one-way using a 5 business Day option from "fast track corp" services the user should be able to....

Choose a box/flat envelope option with the quantity to ship

use only a delivery time of 4 business days

choose to add insurance of 0, 100, 200 dollars

print the total cost

I am having difficulty making my program work properly I want to fix it so that it will calculate the total cost after insurance is chosen and I also want to make the program change lowercase input to uppercase input I also want the program to loop if the user inputs letters instead of numbers and same thing for numbers instead of letters

Here is what I have done so far

#include

#define _CRT_NO_WARNINGS

#include

int main(void)

{

// Declaration of Variables :

//Bag/Case option :

int carryOn = 69;

int standardBag = 99;

//User Answers

char userAnswer = 'Y';

int answer = 0; //Carry on or Standard Bag

int numItemsStandard = 0;

int numItemsCarry = 0;

int total = 0; //Total of number of items * item type

int newTotal = 0; // Complete total before tax.

//Shipping & Insurance options :

int shippingTime = 4;

int insuranceA = 0;

int insuranceB = 100;

int insuranceC = 200;

int insuranceD = 300;

int insuranceE = 400;

int insuranceF = 500;

// Start of the program.

while(answer!=1,2,3) {

printf("Welcome Please select an option for what you would like to ship. Enter 1 for Carry on or 2 for Standard bag 3 for both ");

scanf("%d", &answer);

//If else statmenets for carry on or bag option

if (answer == 1)

{

printf("You selected : Carry on option How many would you like to ship? \t");

scanf("%d", &numItemsCarry);

total = numItemsCarry * carryOn;

}

else if (answer == 2)

{

printf("You selected : Standard Bag option How many would you like to ship? \t");

scanf("%d", &numItemsStandard);

total = numItemsStandard * standardBag;

}

else if (answer == 3)

{

printf("You selected : Standard Bag option & Carry On option ");

printf("How many Carry on bags will you be bringing? \t");

scanf("%d", &numItemsCarry);

printf("How many Standard Bags will you be brining with you? \t");

scanf("%d", &numItemsStandard);

total = numItemsCarry * carryOn + numItemsStandard * standardBag;

}

else

{

printf(" \tError You can only enter integer values for this response. ");

}

//loop again until user inputs the proper number

}

printf("\tYour total before insurance is $%d ", total);

//Choosing of the insurance option :

while(userAnswer!='A','B','C','D','E','F','a','b','c','d','e','f') {

printf(" Please choose an insurance option : Option A: $0 Option B: $100 Option C: $200 Option D: $300 Option E: $400 Option F: $500 ");

scanf(" %c", &userAnswer);

if (userAnswer == 'A')

{

newTotal = total;

printf("Your total is \t$%d.00 \t", newTotal);

}

else if (userAnswer == 'B')

{

newTotal = total + insuranceB;

printf("Your total is \t$%d.00 \t", newTotal);

}

else if (userAnswer == 'C')

{

newTotal = total + insuranceC;

printf("Your total is \t$%d.00 \t", newTotal);

}

else if (userAnswer == 'D')

{

newTotal = total + insuranceD;

printf("Your total is \t$%d.00 \t", newTotal);

}

else if (userAnswer == 'E')

{

newTotal = total + insuranceE;

printf("Your total is \t$%d.00 \t", newTotal);

}

else if (userAnswer == 'F')

{

newTotal = total + insuranceF;

printf("Your total is \t$%d.00 \t", newTotal);

}

else

{

printf(" ERROR enter in uppercase ");

}

} // loop again if letters were not entered

printf("total trip cost is %d");

return 0;

}