NO.PZ2023021601000024
问题如下：
A portfolio on the capital market line with returns greater than the returns on the market portfolio represents a(n)(原版书)选项：
A.lending portfolio. B.borrowing portfolio. C.unachievable portfolio.解释：
As one moves further to the right of point M on the capital market line, an increasing amount of borrowed money is being invested in the market portfolio. This means that there is negative investment in the risk–free asset, which is referred to as a leveraged position in the risky portfolio.题目怎么样问，才是unachievable portofolio？
