Suppose that we have a stock with a price of $60 today and that in one year, the price will be either $90 or $30. The risk-free rate is 10%. Consider the payoffs to a call option with a strike price of $60. what is the value of the call option?(Hint: construct a portfolio with the stock and the risk-free bond to replicate the payoff structure of the call option.The value of the call option today must be equivalent to the value of the replication portfolio to prevent arbitrage.