0 / / Specification A1 - Alpha Menu Change from a numeric menu to an alphabetic menu. See figure 3 for an example menu. Keep your numeric menu code - just com- Alphabetic Menu Options. ngine Failure 0 / / Specification A2 - Menu Input Validation n-Flight Icing uit Only allow the client to enter valid letters for the main menu. Quit Figure 3: Allowable menu options for the program with invalid entries. You can just display a general this program in alphabetic format. error message for this specification. The replaces specification BI, so also like Specification A1 , just comment out the validation code which doesn't apply to a numeric menu. 0 / / Specification A3 - One Function I want to see at least one function in an "A" program. I don't care what you do with it, just write one. Don't forget the function prototype. Rubric. Element Points Code Compiles 15 Code Runs and generates correct output 10 Source File Header 5 No .h libraries Program Greeting 5 Each of the 3 'C' Specifications 5 (15) Bonus for all 'C' Specifications 5 Each of the 3 'B' Specifications 5 (15) Bonus for all 'B' Specifications 5 Each of the 3 'A' Specifications 5 (15) Bonus for all 'A' Specifications 5 Total Points 100 Late Penalty: -10 pointsFigure 2: This is the engine failure menu selection. Are you airborne? Have a drink and Is the electrical call a mechanic. system working? Has the engine Turn on the stopped running? Master Switch Is the outside air emerature