The correct answer is: Mithali Raj.
Mithali Raj is an Indian former cricketer who served as the captain of the India women’s national team in all formats. She is the highest run-scorer in women’s international cricket, with more than 20,000 runs in all formats. She is also the only woman to have scored seven Test centuries.
Kiran Baloch is a Pakistani former cricketer who played as a right-handed batter and right-arm off break bowler. She was the first Pakistani woman to score a Test century, and the first woman to score a double century in women’s international cricket.
Diana Eduljee is an Indian former cricketer who played as a right-handed batter and right-arm off break bowler. She was the first Indian woman to play Test cricket, and the first woman to take a five-wicket haul in women’s Test cricket.
Roma Atwal is an Indian former cricketer who played as a right-handed batter and right-arm off break bowler. She was the first Indian woman to take a hat-trick in women’s international cricket.
In conclusion, Mithali Raj is the highest individual scorer in an innings in Tests among the given options.