Reactions have been calculated for the beam $AB$ shown in the figure. The shear force at location to the right of $A$ is most nearly equal to

$($in kN$)$

A$.+14\mathrm{.}4$ kN

B$.+5\mathrm{.}6$ kN

C$.+2\mathrm{.}4$ kN

D$.-5\mathrm{.}6$ kN

E$.-2\mathrm{.}4$ kN