The correct answer is (a) Zaheer Khan.
Zaheer Khan is an Indian cricketer who is regarded as one of the greatest fast bowlers of all time. He was awarded the Rajiv Gandhi Khel Ratna Award in 2011 for his outstanding contribution to Indian cricket.
Gagan Narang is an Indian shooter who has won several medals at the international level, including a gold medal at the 2012 Summer Olympics. He was awarded the Rajiv Gandhi Khel Ratna Award in 2010.
Tejaswini Sawant is an Indian shooter who has won several medals at the international level, including a gold medal at the 2010 Commonwealth Games. She was awarded the Rajiv Gandhi Khel Ratna Award in 2012.
Jwala Gutta is an Indian badminton player who has won several medals at the international level, including a gold medal at the 2010 Commonwealth Games. She was awarded the Rajiv Gandhi Khel Ratna Award in 2011.
The Rajiv Gandhi Khel Ratna Award is the highest sporting honour of India. It is awarded annually by the Ministry of Youth Affairs and Sports to the most outstanding sportsperson of the year. The award was instituted in 1991 in memory of former Prime Minister Rajiv Gandhi.