A one year call option contract on Cheesy Poofs Co. stock sells for $1,300. Each contract is for 100 shares of stock. In one year, the stock will be worth $40 or $60 per share. The exercise price on the call option is $55. What is the current value of the stock if the risk-free rate is 4 percent?

a. $65.88

b. $64.46

c. $51.46

d. $104.88

this is what i get, but answer isnt in the selection

C0 = 1,300/100=$13 per share

13*((60-40)/(60-55)) + 40/1.04=90.4615