please help me to answer these quesitons. For the MC please explain why choose that answer. Thanks.

The following diagram shows the value of a put option at expiration Ignoring transaction costs, which of the following statements about the value of the put option at expiration is TRUE? A: The value of the short position in the put is $4 if the stock price is S76. B: The value of the long position in the put is -$4 if the stock price is S76. C: The long put has value when the stock price is below the $80 exercise price. D: The value of the short position in the put is zero for stock prices equalling or exceeding $76. Which of the following statements about the value of a call option at expiration is FALSE? A: The short position in the same call option can result in a loss if the stock price exceeds the exercise price. B: The value of the long position equals zero or the stock price minus the exercise price, whichever is higher. C: The value of the long position equals zero or the exercise price minus the stock price, whichever is higher. D: The short position in the same call option has a zero value for all stock prices equal to or less than the exercise price. Is it possible to have two calls (or puts) similar in all respects, except the exercise price, having the same market price? If you observed an European call option having a value less than Max [0, So -X (1 + r)^-t identify the transactions you should execute to create an arbitrage profit