The inflation rate measures the A. percentage change in the price level from one year to the next year. B. percentage change in the quantity of goods and services consumed by urban consumers. C. cost of the CPI market basket at base period prices divided by the cost of the CPI market basket at current period prices. D. cost of the CPI market basket at current period prices divided by the cost of the CPI market basket at base period prices. E. average price of the goods and services consumed by urban consumers.