At the beginning of the 20th century, Russia remained politically, economically, and socially in the old regime, with an autocratic government, predominantly agrarian production, and a hierarchical society.
Indicate what was the most serious and main cause that led to the violent outbreak of the Russian Revolution.


A) The industrialization of production that emerged as a result of the Second Industrial Revolution and the emergence of massive labor.
B) The discontent of the Russian population due to the human losses and crises caused by the Russo-Japanese War and the First World War.
C) The failure of the Tsar's government to implement economic reforms, which proved to be inefficient in increasing the production of goods.
D) The Tsar exercised an autocratic government supported by the bureaucracy, the landowning nobility, and the Orthodox Church.
E) The great waste of economic resources and excessive luxury in the Tsarist Court.