Which portfolio on the efficient frontier that is selected by an investor depends on the level of market activity. the level of interest rates in the market. the investor's risk-return indifference curves. the investor's financial position. the investor's liquidity position.

Which portfolio on the efficient frontier that is selected by an investor depends on the level of market activity. the level of interest rates in the market. the investor's risk-return indifference curves. the investor's financial position. the investor's liquidity position