Sally Oh and Catherine Lee are best friends and bank robbers. Sally and Catherine recently robbed a bank and are being questioned by law enforcement. Required: a) Explain why the prisoner's dilemma is a dilemma. (1 mark) b) Using the prisoner's dilemma, explain how Sally would be better off. (1 mark) c) Using the prisoner's dilemma, explain how both Sally and Catherine would be better off. (1 mark)