Exercise: Selector with list of items from a file

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• Write a program that will get a file on the command line.
• It will display a menu allowing the user to select item by selecting the number next to it.
• e.g. the file looks like this:

blue
yellow
green
black

The menu should look like this:

1) blue
2) yellow
3) green
4) black

• The user then can select a number (e.g. 3) and the program prints "green".
• Make sure the program handles well if the input is invalid.