A $4\mathrm{.}0$ kg ball is moving at $4\frac{m}{s}$ to the right and a $6\mathrm{.}0$ kg ball is moving at $3\mathrm{.}0\frac{m}{s}$ to the left. The total momentum of the system is$,$

$16kg\frac{m}{s}$ to the right

$2\mathrm{.}0kg\frac{m}{s}$ to the right

$2\mathrm{.}0kg\frac{m}{s}$ to the left

$18kg\frac{m}{s}$ to the left

$34kg\frac{m}{s}$ to the left