* Newton's First Law of Motion: An object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity, unless acted upon by a net force.

* Net Force and Velocity: A net force is the overall force acting on an object. If the net force is zero, the object's velocity will either remain at zero (if it was stationary) or stay constant (if it was already moving).

Therefore, the best description of the velocity of a stationary object with zero net force is:

* The velocity is zero and remains zero.