Consider a one-period (1 year) binomial model in which the underlying is at 85 and can go up 30 percent or down 22 percent. The risk-free rate is 8 percent. Assume that the call is selling for $9 In the market. Determine the price of a European call option with exercise prices of 70 and calculate the rate of return of arbitrage transaction. Use 10,000 call options. O a. $7.75 & 15.17% O b. $9.50 & 9.53% O c. $6.75 & 12.78% O d. $7.00 & 10.41%