(1 pt) The Black-Scholes formula for the value of a Euro-style call option is c(s,t) = SN (d) _ Ke-r(T-t)N (d) where N(-) is the cumulative distribution function of the standard normal distribution The parameters are as follows: S is the spot price of the underlying asset K is the strike price T- t is the time to maturity r is the risk free rate (annual rate, expressed in terms of continuous compounding) is the volatility of returns of the underlying asset For parameter values S 86.5 K-90 -t= r 0.0175 = 0.21 me