Who were the "nihilists"?

A) a French political party
B) Irish revolutionaries
C) a Russian group that rejected all established order
D) the tsar's secret police
E) an intellectual group that operated under strict moral dogmas

The nihilists were a Russian group that rejected all established order, including religious, political, and social structures in the late 19th century. They believed in individual freedom and anarchism and often used violence to achieve their goals.