Which of the Following Partly Accounts for Russia?s Lack of Significant

Which of the following partly accounts for Russia?s lack of significant revolution in 1830 and 1848?

A) Russia lacked a substantial history of autocracy
B) The absence of a coercive labor system in Russia left scant cause for rebellion
C) Political repression
D) Like England, Russia?s history of participatory government and its national parliament forestalled revolution