Returns of X Ltd$.,$ were $12\%,13\%,12\%$ and $11\%$ in the last four years. Returns of Y Ltd$.$ were $12\%,13\%,9\%$ and $10\%$ in the last four years. While average market returns were $14\%,15\%,14\%,13\%$ in the last four years, return on government returns for X Ltd$.,$ and Y Ltd$.($using CAPM$)$ and offer your comments.