A call option with an exercise price of $65 and three months to expiration has a price of $4.20. The stock is currently priced at $64.80, and the risk-free rate is 4 percent per year, compounded continuously. What is the price of a put option with the same exercise price? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)
Put option price