Draw the payoff diagrams at maturity for the following two portfolios: A: Long a call at

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Draw the payoff diagrams at maturity for the following two portfolios: 

• A: Long a call at strike K and short a put at strike K, both options for the same maturity. 

• B: Long the stock plus a borrowing of the present value of the strike K. The payoff of this portfolio is the cash flow received at maturity from an unwinding of the positions in the portfolio.

Compare your two payoff diagrams and explain what you see.  

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