Which of the following Indian freedom fighters was not part of the 'Lal Bal Pal' trio?

The 'Lal Bal Pal' trio comprised Lala Lajpat Rai, Bal Gangadhar Tilak, and Bipin Chandra Pal, who were influential leaders of the radical faction within the Indian National Congress during the independence movement. They advocated for Swaraj or self-rule through assertive resistance against British authority. In contrast, Gopal Krishna Gokhale was a prominent figure of the moderate faction, focusing on reform through dialogue and constitutional means, and was not associated with the extremist approaches of Lal Bal Pal.