C#: Include exception-handling techniques with the traditional averaging program. Allow the user to input multiple sets of scores. Ensure that only numeric values are entered and that values fall between 0 and 100. Calculate the average for each set of values. Test the result to determine whether an A, B, C, D, or F should be recorded. The scoring rubric is as follows: A-90-100; B-80-89; C-70-79; D-60-69; F <60. Your solution should include exception handling techniques with a minimum of three appropriate catch clauses.