Help asappppp plsss$!$ For questions $9$ through $12,$ consider the truss below loaded with the two forces shown. It is supported at $E$ by a roller and $A$ by an external hinge.

$9.$ Calculate the vertical reaction component at $A$ in kilonewtons.

$($a$)0$

$($b$)2$ up

$($c$)4$ up

$($d$)8$ up

$10.$ Calculate the force in member $AB,$ in kilonewtons.

$($a$)4\mathrm{.}00$ ten

$($b$)4\mathrm{.}00$comp

$($c$)6\mathrm{.}93$ ten

$($d$)8\mathrm{.}00$ comp

$11.$ Calculate the force in member $HG,$ in kilonewtons.

$($a$)4\mathrm{.}00$ ten

$($b$)4\mathrm{.}00$comp

$($c$)6\mathrm{.}93$ ten

$($d$)8\mathrm{.}00$comp

$12.$ Calculate the force in member $CG,$ in kilonewtons.

$($a$)4\mathrm{.}00$ ten

$($b$)4\mathrm{.}00$comp

$($c$)6\mathrm{.}93$ ten

$($d$)8\mathrm{.}00$comp