在$\triangle ABC$中,内角$A$,$B$,$C$所对的边长分别为$a$,$b$,$c$,若$A=\dfrac{\pi}{3}$,$b=4$,$\triangle ABC$的面积为$3\sqrt{3}$,则$\sin B=$( )
$\text{A.}$ $\dfrac{2\sqrt{39}}{13}$
$\text{B.}$ $\dfrac{\sqrt{39}}{13}$
$\text{C.}$ $\dfrac{5\sqrt{2}}{13}$
$\text{D.}$ $\dfrac{3\sqrt{13}}{13}$