On July 6 of 2012, the price of a stock traded at $165.13 per share. Its call option had a strike price of 165 and October 16 maturity date and a premium of $8.13. The continuously compounded risk free rate of return is 5.71% and the standard deviation is 21%. What is the theoretical value of the call (assume a European call). Based on your answer, recommend a riskless strategy. If the stock price decreases by $1, how will the option position offset the loss?