Answer : 3. "Virat Kohli "
Explanation :

India's legendary batsman and former captain of the Indian team, Virat Kohli has become the Indian batsman who has scored the most runs in the World Test Championship (WTC). This new record was achieved in the first match of the ongoing Test series against the South African cricket team. He left Indian captain Rohit Sharma behind. Rohit has so far scored 2,097 runs in 42 innings of 26 Tests in the WTC. Virat has so far scored 2101 runs in 57 innings of 35 test matches.