Option 1 -> Insurrection means a violent uprising or rebellion against authority, which aligns with sedition's meaning of inciting revolt against the state.
Option 2 -> Interfere means to intervene or meddle in affairs, which doesn't relate to the concept of rebellion against government authority.
Option 3 -> Impose means to force or establish something by authority, which is the opposite of sedition (opposing authority).
Option 4 -> Intermediary means a mediator or go-between, which has no connection to acts of rebellion or incitement.
Hence, Option 1: Insurrection -> Sedition refers to conduct or speech that incites rebellion against governmental authority. In the passage, Gulab Kaur was charged with sedition for her anti-British activities and efforts to rally masses against British rule. Insurrection, meaning a violent uprising against authority, is the most appropriate synonym -> correct