5. (Call option buying and selling) David wants to buy a call option written on Raider Corporation stock. Patrick is willing to sell David a call option on Raider stock with an exercise price of $50 for $8.20. The option will mature in exactly 1 year. The current market price for Raider stock is $50. a. Determine and graph the payoffs of both David and Patrick's respec- tive positions. b. For what stock price S, is the profit of both David and Patrick zero? B C 1 Call price 8.20 Raider stock price at option expiration, Sy Patrick's profit David's profit 10 20 50 100