Both a call and a put currently are traded on stock XYZ; both have strike prices of $50 and expiration's of 6 months. What will be the profit to an investor who buys the call for $4 in the following scenarios for stock prices in 6 months? What will be the profit in each scenario to an investor who buys the put for $6?

a. $40 b. $45 c.$50 d.$55 e. $60