Ruby is outside watering her lawn, when she sees Anthony walking towards her on the sidewalk talking on his iPhone$15.$ Water is flowing out of Ruby's water hose at a speed of $5$ m$/$s$,$ and Ruby knows Anthony isn't paying attention to his surroundings.$$ So Ruby uses her thumb to reduce the cross section of the hose from $3$ cm$^2$ to $1$ cm$^2,$ and sprays Anthony in his face before he gets too close to her lawn.$$ What is the speed of the water that hits Anthony's face? $[$The iPhone$15$ is water$-$resistant and is not harmed.$]$

$$

Group of answer choices

$6$ m$/$s

$2$ m$/$s

$27$ m$/$s

$15$ m$/$s