The table summarizes the annual mean returns, variances and standard deviations using the monthly return data for four major stock market indexes. Which market is considered most risky using CV (coefficient of variation) as a measure of risk? Variance of Market Mean Return (%) Return STDEV (%) A 5 184.96 13.6 B 9.4 501.76 22.4 12 462.25 21.5 D 9.3 368.64 19.2 Market A Market B Market Market D