9. A measure of liquidity for a stock market is the turnover ratio; defined as A. the ratio of stock market transactions over a period of time divided by the size, or market capitalization, of the stock market. B. the ratio the size, or market capitalization, of the stock market divided by the value of the stock market transactions over a period of time. C. the ratio of aggregate company sales over a period of time divided by the size, or market capitalization, of the stock market. D. none of the above