简答题Which of the following describes a long position in an option? A、A position where there is more than one year to maturity B、B.A position where there is more than five years to maturity C、A position where an option has been purchased D、A position that has been held for a long time简答题Which of the following describes a call option? A、The right to buy an asset for a certain price B、The obligation to buy an asset for a certain price C、The right to sell an asset for a certain price D、The obligation to sell an asset for a certain price简答题Consider a put option and a call option with the same strike price and time to maturity. Which of the following is true? A、It is possible for both options to be in the money. B、It is possible for both options to be out of the money. C、One of the options must be in the money. D、One of the options must be either in the money or at the money.简答题Which of the following must post margin? A、The seller of an option B、The buyer of an option C、The seller and the buyer of an option D、Neither the seller nor the buyer of an option简答题Which of the following describes a difference between a warrant and an exchange-traded stock option? A、In a warrant issue, someone has guaranteed the performance of the option seller in the event that the option is exercised B、The number of warrants is fixed whereas the number of exchange-traded options in existence depends on trading C、Exchange-traded stock options have a strike price D、Warrants cannot be traded after they have been purchased