INDIAN HISTORY

Detailed explanation-1: -Allan Octavian Hume was not associated with extremist leadership of Indian National Congress.

Detailed explanation-2: -Detailed Solution. The correct answer is Gopal krishna Gokhale.

Detailed explanation-3: -The Early Nationalists failed to attain their objectives, giving rise to another group of leaders known as Assertive or Extremist Nationalists. The most prominent leaders of the Assertive Nationalists were Bal Gangadhar Tilak, Lala Lajpat Rai and Bipin Chandra Pal, who are known collectively as the Lal-Bal-Pal trio.

Detailed explanation-4: -Lala Lajpat Rai, Bal Gangadhar Tilak, Bipin Chandra Pal (the first three called Lal-Bal-Pal leading the extremist cause in Punjab, Bombay and Bengal respectively.)