已知全集 $U=\{0,1,2,3,4,5,6,7,8,9\}$，集合 $A=\{0,1,3,5,8\}$，集合 $B=\{2,4,5,6,8\}$，则 $\left(C_{U}A\right)\cap \left(C_{U}B\right)$=(  )

A．

$\{5,8\}$

B．

$\{7,9\}$

C．

$\{0,1,3\}$

D．

$\{2,4,6\}$