Correct option is B
Friction plays a crucial role in enabling us to hold or grip objects. Without friction between the surface of the hand and the glass tumbler, it would simply slip from the grip, making it nearly impossible to hold the glass. Frictional force provides the necessary resistance to counteract the effects of gravity and external forces, enabling a firm grip.
In other scenarios:
Moving a heavy box: Friction opposes motion, but here it can be overcome with effort or the use of tools like rollers or wheels.
Playing carrom: Friction is required between the striker and the board for effective shots, but applying powder reduces excessive friction for smooth gameplay.
Movement of a door: Friction in hinges slows down or resists motion, but excessive friction in hinges can make opening/closing difficult.
