$8.$ The technique which is not used to construct an active portfolio is:

$($a$)$ quadratic optimisation

$($b$)$ linear programming

$($c$)$ market timing

$($d$)$ sector rotation

$9.$ The separation theory divides decisions into:

$($a$)$ borrowing $/$ lending

$($b$)$ stocks $/$ bonds

$($c$)$ investing $/$financing

$($d$)$ risk $/$ return

$10.$ When adding a stock to a portfolio, the most advantageous correlation coefficient between the stock and the portfolio for diversification would be:

$($a$)+0\mathrm{.}3$

$($b$)-0\mathrm{.}2$

$($c$)+0\mathrm{.}9$

$($d$)0\mathrm{.}0$