Which one of these has kinetic energy?

1. Kinetic energy is the energy an object has because it is moving. 2. A bird in flight is moving, so it has kinetic energy. 3. A stone on a wall, a book on a shelf and a parked bicycle are all still. 4. Those three have stored energy but no kinetic energy. _Source: Siyavula Natural Sciences Grade 7 (CC BY 4.0), Kinetic energy_