The correct answer is: A. Jitu Rai.
Jitu Rai is an Indian pistol shooter who won the gold medal in the 10 metre air pistol event at the 2016 Summer Olympics. He is the first Indian shooter to win a gold medal at the Olympics. He has also won the gold medal at the 2014 Asian Games and the 2015 World Championships.
Sania Mirza is an Indian tennis player who has won six Grand Slam titles in doubles. She is the first Indian woman to win a Grand Slam title. She has also won the gold medal at the 2010 Commonwealth Games and the 2014 Asian Games.
Rohit Sharma is an Indian cricketer who is the vice-captain of the Indian national team. He is the only batsman to have scored three double centuries in One Day Internationals (ODIs). He has also scored the most runs in ODIs by an Indian batsman.
Babita Kumari is an Indian freestyle wrestler who won the gold medal at the 2014 Commonwealth Games. She is the first Indian woman to win a gold medal in wrestling at the Commonwealth Games. She has also won the bronze medal at the 2012 Summer Olympics.
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.