Q. Who among the following was not part of radical school of thought?
Answer: D
Notes:
Explanation: From the late 1890s there were growing differences within the INC. Leaders like Bipin Chandra Pal, Bal Gangadhar Tilak and Lala Lajpat Rai were advocating radical approaches instead of merely writing petitions, prayers and memorandums.
Source: NCERT

