A professional concert is played for the benefit of the American Heart Association each year. The admission charge is $32 per ticket, which is also the usual admission price for a professional concert. One -half of the purchase price goes directly to the American Heart Association. Clark buys four tickets at a total cost of $128. Clark itemizes deductions. a. How much can Clark deduct per ticket as a charitable contribution? b. How would your answer to part a. differ if Clark had no intention of going to the concert and in fact did not go, leaving the tickets unused? c. How would you answer be different if Clark paid $32 for each ticket, when the usual admission charge per