19. If you took a short position in two S and P 500 futures contracts at a price of $1510 and closed the position when the index futures was $1492, you incurred: a. A gain of $9000 b. A loss of $9000 c. A loss of $18000 d. A gain of $18000 e. A gain of 90,000 f. A loss of $90,000 20. Which of the following are examples of interest rate futures contracts? a. Corporate bonds b. Treasury bonds c. Eurodollars d. T Bonds and Eurodollars e. Corporate bonds and Treasury Bonds f. Bitcoin Index futures g. None of the above