Final answer:
An object with no acceleration could either be at rest (option A) or moving at a constant velocity (option B). Deceleration or chaotic movement are not consistent with no acceleration, as they imply changes in velocity.
Step-by-step explanation:
When there is no acceleration, it could imply that the object is either at rest or that it is moving at a constant velocity. If an object is not accelerating, it means that there is no change in its velocity, which is the rate of change of position over time. An object at rest will have a velocity of zero and will not change unless acted upon by a net external force, as per Newton's first law of inertia. Likewise, an object moving at a constant velocity will continue to move at that same speed and in the same direction unless a net force is applied.
It is important to note that the option stating the object 'is decelerating' would suggest that there is acceleration but in the opposite direction of the motion, which contradicts the initial condition of no acceleration. Similarly, the option 'moving chaotically' would typically imply some form of irregular or varying acceleration, which again is not consistent with the condition of no acceleration.
The correct answers are therefore A) It is at rest and B) It is moving at a constant velocity, as these are the two scenarios in which an object's acceleration can be zero.