Concept:Inertia is the resistance of an object to any change in its state of motion.
It is directly proportional to the mass of the object.
Explanation:According to Newton’s first law of motion, an object at rest stays at rest and an object in motion stays in motion unless acted upon by an external force.
This property is called inertia.
The greater the mass of an object, the larger its inertia, because more force is needed to change its motion.
Among the given choices: an atom, a molecule, a one‑rupee coin, and a cricket ball, the cricket ball has the highest mass.
Thus, it requires the greatest force to start moving it (if at rest) or to stop it (if moving).
Therefore, the cricket ball possesses the maximum inertia.
Answer:Option D – A cricket ball.