The following portfolios are being considered for investment. During the period under consideration, $RFR=0\mathrm{.}08.$

a$.$ Compute the Sharpe measure for each portfolio and the market portfolio. Round your answers to three decimal places.

b$.$ Compute the Treynor measure for each portfolio and the market portfolio. Round your answers to three decimal places.

c$.$ Rank the portfolios using each measure, explaining the cause for any differences you find in the rankings.