If a government cannot accurately measure GDP, what problems can that cause for the government or for businesses in that country? A. It will be difficult for the government to determine whether its policies are effective at increasing or decreasing the growth rate of GDP. B. Businesses in the underground economy will be subject to increased government regulation and forced to pay taxes on the income they earn. C. It's not likely to cause any problems since GDP is only used to measure the economy's performance over short periods of time. D. Both A and B are correct