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6. What actions would a seller of a commodity take to execute a bearish collar? Make sure to include how the option strike prices compare to the current futures price in your answer. 7. What actions would a buyer of a commodity take to execute a ratio call spread? Make sure to include how the option strike prices compare to each other in your answer. 8. How does the risk associated with a ratio call spread compare to the risk associated with a "doubling up" strategy in the futures market? Make sure to explain your answer for full credit. 9. Under what circumstances would a buyer of a commodity want to execute a ratio volatility spread