answer second part please

Question 5 a) A stock is currently valued at $100. The exercise price of the call and put options on the stock is $97. The call and put premiums are $7 and $3 respectively. Assume both options can be exercised in exactly six months. Required: i. Suggest, by showing your calculation, the synthetic risk-free rate that can be produced from the above information. (6 marks) ii. Critically discuss the consequences or opportunities if the rate of return on an actual 6-month risk-free security with a face value of $100 is different from the 6- month synthetic risk-free rate estimated in (1) above. (6 marks)