The first ‘disabled athlete’ to qualify for an able bodied event in the 2012 London Olympics in 400 metres race is –

Oscar Pistorius
Walter Rallis
Raymond Irchovich
Gerald Hangovin

The correct answer is Oscar Pistorius.

Oscar Pistorius, also known as “Blade Runner”, is a South African former track and field sprinter who competed in international competitions with blade prostheses. He is the first double-amputee runner to compete at the Olympic Games. He competed at the 2012 Summer Olympics in London, where he ran in the 400 metres and the 4 × 400 metres relay. He was also a finalist in the 400 metres at the 2011 World Championships in Athletics.

Pistorius was born in Pretoria, South Africa, on November 22, 1986. He was born without fibulas in his lower legs, and his legs were amputated below the knee when he was 11 months old. He began running with prosthetic legs at the age of 11, and he quickly became one of the fastest runners in the world.

Pistorius made his international debut at the 2004 Summer Paralympics in Athens, where he won gold medals in the 200 metres and 400 metres. He also won a silver medal in the 4 × 100 metres relay. He repeated his gold medal performance in the 200 metres at the 2008 Summer Paralympics in Beijing.

Pistorius made his able-bodied debut at the 2011 World Championships in Athletics in Daegu, South Korea. He qualified for the 400 metres final, where he finished eighth. He was the first double-amputee runner to compete in a world championship final.

Pistorius qualified for the 2012 Summer Olympics in London. He ran in the 400 metres and the 4 × 400 metres relay. He was eliminated in the heats of the 400 metres, but he helped South Africa finish fifth in the 4 × 400 metres relay.

Pistorius was banned from competition in 2015 after being found guilty of culpable homicide in the shooting death of his girlfriend, Reeva Steenkamp. He was released from prison in 2016 after serving one year of his five-year sentence.

Pistorius is a controversial figure, but he is also a pioneer for disabled athletes. He has inspired millions of people around the world with his determination and his achievements.