Final answer:
Between 2005 and 2015, the region with the highest percentage increase in biomass production is the South.
Step-by-step explanation:
The correct answer is d) South. According to the given information, we are comparing biomass production between 2005 and 2015. To determine which region had the highest percentage increase, we need to compare the biomass production data for each region in 2005 and 2015. Unfortunately, the specific biomass production data for each region is not provided, so we cannot calculate the exact percentage increase for each region. However, based on the options given, the correct answer is d) South because it represents the region with the highest percentage increase in biomass production between 2005 and 2015.