The correct answer for the question is option 1: Usain Bolt.

Option 1 - Usain Bolt: Usain Bolt, a Jamaican sprinter, created a world record in the men`s 100 metre sprint event at the 2008 Olympic Games held in Beijing, China. He completed the race in 9.69 seconds, securing his position as the fastest man in the world.

Option 2 - Churandy Martina: Churandy Martina is a sprinter from the Netherlands Antilles who has achieved success in various international competitions. Although he has participated in the 100 metre sprint event, he did not create a world record at the 2008 Olympic Games.

Option 3 - Asafa Powell: Asafa Powell is a Jamaican sprinter who has held the world record in the men`s 100 metre sprint event in the past. However, at the 2008 Olympic Games, he did not set a new world record in the event.

Option 4 - Walter Dix: Walter Dix is an American sprinter who has won medals in both the Olympics and World Championships. However, he did not create a world record in the men`s 100 metre sprint event at the 2008 Olympic Games.

In conclusion, the correct