The History of the Four Russian Dumas, or Parliaments, Indicated

The history of the four Russian Dumas, or parliaments, indicated that

A) socialism and radicalism had little support in Russia.
B) the government could manipulate the electoral process to obtain the kind of Duma it wished.
C) the Cadets, or Liberals, enjoyed the support of most of the Russian people.
D) no party or group of parties could form a majority.