Correct Option: D  [ All of the above ]
Remark:
All of the above are examples of static electricity. Static electricity is the result of the accumulation of electric charges on the surface of objects. When materials like glass, silk, ebonite, or wool are rubbed together, electrons are transferred, creating a charge imbalance. Similarly, lightning is a large-scale natural discharge of static electricity between clouds and the Earth.
- Glass rod & silk cloth: Positive and negative charges develop.
- Ebonite rod & wool: Negative charge accumulates on ebonite.
- Lightning: Discharge of atmospheric static electricity.