A 80 kg man skating with a speed of 10 m/s on a smooth horizontal surface collides with a 20 kg skater at
rest, as a result the two cling to each other. What percentage of initial kinetic energy of skaters is lost
during the collision? (Ignore any friction)

A

12 $$\%$$

B

18 $$\%$$

C

20 $$\%$$

D

25 $$\%$$