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

Both a call and a put currently are traded on stock XYZ; both have strike prices of $50 and expirations 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