Design create and test a program which converts degrees Fahrenheit to degrees Ce

Design create and test a program which converts degrees Fahrenheit to degrees Centigrade (Celsius). The program must contain one main program and 3 functions: F2C() and C2F() and instructions(). The user will be asked to enter a numeric code to determine the operation. If the input code = 1 then convert F to C if the code = 2 then convert C to F if the input code = 3 then display instructions and if the code = 4 then quit. The program should be in a loop that repeatedly performs conversions until the user quits then the program stops. Display the instructions one time when the program starts (or whenever the user enters code = 3). Keep inputs and outputs (except for instructions) in the main program. Use F2C() and C2F() to perform conversion only.