During the Nineteenth and Early Twentieth Century,futures Trading in the United

During the nineteenth and early twentieth century,futures trading in the United States steadily gained acceptance,while options trading stayed in the shady corners of the financial markets and was viewed with suspicion.Which of the following was NOT a reason for this development?

A) Futures contracts had a history of being developed to help farmers and purchasers hedge price risk,while options trading had no such justification.
B) Options were used for market manipulation.
C) Option contracts traded in over-the-counter markets and had substantial legal risk.
D) Option contracts were guaranteed by well-capitalized large traders.
E) Option contracts were used for speculation in the United States.