17. Which of the following has the right to sell an asset at a predetermined price? a. A put buyer A call writer b. A put writer d. A call buyer 8. Which of the following is potentially obligated to sell an asset at a predetermined price? a. A call buyer. b. A call writer. c. A put buyer. A put writer. 19. American-style options can be exercised any time before expiration. True False c. Not necessarily d. None of the above 20. The intrinsic value of an option decreases as the option approaches expiration. a. Not necessarily False c. True d. None of the above 21. The buyer of a forward contract is obligated to buy the underlying asset when the contract expires. a. Not necessarily b. False c. True d. None of the above shule mlet