3. Put-call Parity Sad Corp (SC) is a distressed firm that is not expected to pay dividends over the next year. SC stock is currently at $10, and it costs $7 to buy an at-the money call option on SC maturing one year from now. The price of a riskfree zero-coupon bond with a face of $ 100 maturing one year from now is $95. Assume there is no arbitrage. a. (5 points) If the call option described above is a European option, what is the price today of an at-the-money European put option on SC maturing one year from now? b. (5 points) If the call option described above is an American option, what do we know about the price today of the same European put option? c. (5 points) If the call option described above is an American option, what do we know about the price today of an at-the-money American put option on SC maturing one year from now