The price of a European call option on RBC stock with an exercise price of $85 and one year to expiry is trading at $3.51. The current price of the stock is $81.25, and the risk-free rate is 2.5%. With no arbitrage, what must be the price of a European put on RBC with an exercise price of $85?

$4.83

$4.71

$5.19

$1.47

$3.15