For each pair of second$-$order system specifications that follow, find the location of the second$-$order pair of poles $[$Re$,$ Im$].$

$\%OS=9\mathrm{.}3$; $T_s=5\mathrm{.}6$

a$.-0\mathrm{.}430,1\mathrm{.}023$

b$.-0\mathrm{.}714,1\mathrm{.}383$

c$.-0\mathrm{.}714,0\mathrm{.}945$

d$.-0\mathrm{.}714,1\mathrm{.}046$