What is the primary function of the torsion springs (damper springs) fitted radially in the clutch plate disc of an automobile?

1. To hold the friction linings firmly in place against the pressure plate.
2. To absorb rotational shocks and engine torque fluctuations during clutch engagement.
3. To push the pressure plate away from the flywheel when the clutch pedal is depressed.
4. To allow adjustment of the clutch pedal free play as the lining wears.