A cat is thrown vertically upward $+$uarr. At the instant it reaches its maximum height:

$($A$)$ the cat is in equilibrium

$($B$)$ its velocity is $9\mathrm{.}8\frac{m}{s^2}$

$($C$)$ there is no Net force acting on it

$($D$)$ its acceleration is $-9\mathrm{.}8\frac{m}{s^2}.$