During inelastic collision of two particles, which one of

During inelastic collision of two particles, which one of the following is conserved?

1. Total linear momentum only
2. Total kinetic energy only
3. Both linear momentum and kinetic energy
4. Neither linear momentum nor kinetic energy

Linear momentum and Kinetic Energy is conserved in elastic collision and in inelastic collision Kinetic Energy (heat, sound etc.) is conserved.