To determine how much more efficient organic farming is compared to "regular" farming, we need to consider the efficiency options provided. After a thorough analysis based on the given question and context, we can conclude that:
There is no specific numerical data or information supplied that enables us to calculate or confirm the exact efficiency of organic farming compared to "regular" farming from the given options. Therefore, based on the analysis, we can determine that there is no definitive answer to this question with the provided information.
Thus, the correct course of action would be to indicate that none of the provided options can be confirmed as the correct efficiency difference between organic and "regular" farming.
