The following two problems correspond to the figure below, where $F=1000N.$

What is the reaction force at the roller B$?$

$($a$)1\mathrm{.}80$ kN $,$

$($b$)4\mathrm{.}02$ kN $,$

$($c$)5\mathrm{.}09$ kN $,$

$($d$)6\mathrm{.}71$ kN

$($c$)8\mathrm{.}48$ kN $.$

What is the magnitude of the reaction force at the pin $A?$

$($a$)1\mathrm{.}80$ kN $,$

$($b$)4\mathrm{.}02$ kN $,$

$($c$)5\mathrm{.}09$ kN

$($d$)6\mathrm{.}71$ kN $,$

$($c$)8\mathrm{.}48$ kN $.$