Question: Solve correctly using C++ iMobile is a mobile phone service company that offers three different data plans to its customers. Plan A: Price: $39.99 per

Solve correctly using C++

iMobile is a mobile phone service company that offers three different data plans to its customers. Plan A: Price: $39.99 per month. Data allowance: Includes 4 gigabytes of data. Additional data costs $10 per gigabyte. Plan B: Price: $59.99 per month. Data Allowance: Includes 8 gigabytes of data. Additional data costs $5 per gigabyte. Plan C: Price: $69.99 per month. Data Allowance: Unlimited Write a program that calculates a customers monthly bill. It should prompt the user for the customers plan and the number of gigabytes of data used. It should then calculate and display the total amount due. Notes Use a menu to prompt user for Plan. Input Validation Display an error message if the user enters an invalid menu option. Do not allow negative values for data used. Display amount due, formatted with a precision of two decimal values. Output Samples

Input validation

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