Which of the following is/are true about the usefulness of options as derivative securities? (Note: multiple answers with partial marks are possible) Select one or more: For both bearish and bullish markets, the options strategies can be used as two-edged sword to make potential gain. a. b. Options are useful for speculators. c. Options give the option buyer and seller symmetrical rights depending on the state of the underlying asset at the expiry date. d. Options are always the cheaper derivative security compared with futures e. Selling an option is low risk for the seller. f. As traders experience high volatility, they use options to hedge the volatility. g. Options serve as a potential insurance scheme to mitigate downside risk. h. Receiving an option costs the buyer nothing