6. A stock is currently prices at $30. It can go up or down by $3. a. Assuming the risk-free rate is 5%, discrete compounding, calculate the price of a one period call option with strike of $31 and show the replicating portfolio. b. Using the put-call parity, evaluate the price of a put with the same maturity and strike. c. Redo section 'a' with the stock going up or down by $5. you conclude about the option price in relation to volatility