Which one of the following statements is false? A. There are four broad groups of decision-making units in the economy: households, firms, government and the foreign sector. B. Imports are an important injection into the circular flow of income and spending in the economy. C. Taxes are a leakage or withdrawal from the flow of income and spending in the economy. D. Spending by households on consumer goods and services is called consumption spending. E. Spending on capital goods is called investment spending and is an important addition to, or injection into, the circular flow of income and spending in the domestic economy