A particle moves along the $-$axis so that at time its position is given by of the following statements describes the motion of the particle at time $?$

$($A$)$The particle is moving down the $-$axis with decreasing velocity.

$($B$)$The particle is moving down the $-$axis with increasing velocity.

$($C$)$The particle is moving up the $-$axis with decreasing velocity.

$($D$)$The particle is moving up the $-$axis with increasing velocity.

$.$ Which