For Murza Only, #1

This is a project for Murza only. As we have discussed, some revisions are desired for the programs you have already created for me. These include the capacity for the program to run multiple levels of difficulty as well as "all" levels (which, if picked, will make the program pick among all the questions in the dataset). A change to the spelling program is for the user input to be echoed to the screen and correctible via the backspace key. For all the programs it is desired that the user can pause the program and change the level of difficulty at any time, or change the level of difficulty while the program is paused for the "persistence power" question. A last minute addition, please, is that the program keep track of the total time paused (either at the persistence power question or at pauses the user makes by pushing the pause button) and the total time paused be reported in the log along with the total time on task. Thanks very much.