Final answer:
The object moving at a constant speed implies balanced forces, thus the net force is zero, according to Newton's first law.
Step-by-step explanation:
If an object is moving to the right with a constant speed, it can be concluded that the net force acting upon the object is zero. This is in accordance with Newton's first law of motion, which states that an object will continue to move at a constant velocity unless acted upon by a net external force. Therefore, even though there may be individual forces acting on the object, such as gravitational force, friction, or air resistance, these forces must be balanced (equal and opposite) resulting in no net change in speed or direction. In this scenario, the correct conclusion is that the net force acting upon the object is zero, meaning the forces are balanced.