Planet $\backslash ($ X $\backslash )$ has twice Earth's mass and three times Earth's radius. The magnitude of the gravitational field near Planet X$\text{'}$s surface is most nearly

$\backslash (2\backslash$mathrm$\{$~N$\}/\backslash$mathrm$\{$kg$\}\backslash )$

$7$ N$/$kg

$10$ N$/$kg

$20$ N$/$kg