Question

are inertia and motion the same thing?
yes, there is no difference between motion and inertia.
no, an object at rest has inertia just like an object in motion.

Explanation:

Inertia is the tendency of an object to resist changes in its state of motion (either rest or motion). Motion is the change in position of an object. An object at rest has inertia (resists moving), and an object in motion has inertia (resists stopping or changing speed/direction). So inertia and motion are not the same. The second option correctly explains this.

Answer:

No, an object at rest has inertia just like an object in motion.