To answer this question, we need to have knowledge about the characters in the movie "Rang De Basanti".
Option A) Rina - This option is incorrect because Rina is not the name of Soha Ali Khan's character in the movie "Rang De Basanti".
Option B) Tina - This option is incorrect because Tina is not the name of Soha Ali Khan's character in the movie "Rang De Basanti".
Option C) Monica - This option is incorrect because Monica is not the name of Soha Ali Khan's character in the movie "Rang De Basanti".
Option D) Sonia - This option is correct because Soha Ali Khan's character in the movie "Rang De Basanti" is named Sonia.
The correct answer is option D) Sonia.