Please forgive me if this is a really basic question (I'm new to options trading). I searched the forums but could not find anything. Let's say hypothetically you want to buy a put for the S&P500 index because you believe the market, based on your analysis, will go down in the next month to a certain price level. If you could only choose between buying an option for the S&P500 index, the S&P500 index futures contract, or the S&P500 E-mini futures contract, which would you choose? What factors do you consider in your analysis? Thanks in advance!