pls solve those 2. thumb up for u, thank you

5. The main difference between a call and a put option on a stock is that: a. The first gives you the obligation to buy a stock at a certain price and a certain time, while the second gives you the right to buy a stock at a certain price and a certain time b. The first gives you the right to buy a stock at a certain price and a certain time, while the second gives you the right to sell a stock at a certain price and a certain time. c The first gives you the right to buy a stock at a certain price and a certain time, while the second gives you the obligation to buy a stock at a certain price and a certain time. d. The first gives you the right to sell a stock at a certain price and a certain time, while the second gives you the right to buy a stock at a certain price and a certain time. 6. If time to expiration increases while all other variables affecting stock option prices are kept fixed, then: a. The price of European options (both put and call) increases, while the price of American options (both put and call) decreases b. The price of European options (both put and cally decreases, while the price of American options (both put and call) decreases c. The price of European options (both put and cally decreases, while the price of American options (both put and call) increases. d. None of the above