A call option with an exercise price of $32 and 6 months to expiration has a price of $3.75. The stock is currently priced at $17.84, and the risk-free rate is 7 percent per year, compounded continuously. What is the price of a put option with the same exercise price? a. $0.37 b. $17.65 c. $11.54 d. $16.47 e. $16.81