The common stock of the C$.$A$.$L$.$L$.$ Corporation has been trading in a narrow range around $$105$ per share for months, and you believe it is going to stay in that range for the next $6$ months. The price of a $6-$month put option with an exercise price of $$105$ is $$12\mathrm{.}86.$

Required:

a$.$ If the semiannual risk$-$free interest rate is $3\%,$ what must be the price of a $6-$month call option on C$.$A$.$L$.$L$.$ stock at an exercise price of $$105$ if it is at the money? $($The stock pays no dividends.$)$

b$.$ What would be a simple options strategy using a put and a call to exploit your conviction about the stock price's future movement? What is the most money you can make on this position? How far can the stock price move in either direction before you lose money?

c$.$ How can you create a position involving a put, a call, and riskless lending that would have the same payoff structure as the stock at expiration? What is the net cost of establishing that position now?

Answer is complete but not entirely correct.

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Requir$$d $A$

What would be a simple options strategy using a put and a call to exploit your conviction about the stock price's future movement? What is the most money you can make on this position? How far can the stock price move in either direction before you lose money?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

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Answer A$,$ B$,$ and C$.$