Suppose that you have $$12,000$ to invest this year. You wish to hold a diversified portfolio of $50\%$ bonds and $50\%$ preferred stocks. Tax rules limit total contributions to all your IRA accounts to $$6,000$ per year. Which investments would you purchase and in which savings vehicles would you hold these investments? How much after$-$tax cash accumulation $($F$)$ would this strategy generate at the end of your $10-$year investment horizon?