The correct options are
A Assertive Nationalists agreed with the choice of President.
B Moderate nationalists walked away from the session.
C It was a peaceful session.
When the Surat session started, Assertive Nationalists disapproved of the choice of President. Things escalated quickly, and the crowd turned into a mob of protesters. Assertive Nationalists walked away from the session under the leadership of Tilak. This act split the Congress into two separate factions.