Question

According to Emanuel Derman, writing in the Journal of Derivatives, Winter, 2000, p. 64 he says “Good theories, like Black-Scholes-Merton, provide a theoretical laboratory in which you can explore the likely effect of possible causes. They give you a common language with which to quantify and communicate your feelings about value.”
Riding on that background and given the following information
Current Price of underlying asset k100
Strike price of underlying asset k80
One period risk free rate of return 10%
Stock price can either go up or down by 20%
Time period 6 months
Determine the call value
What is the time value for holding on to the option
What is the Put Option Price using the PUT-CALL Parity relationship

Answer 1