Triple

Target entity: Right Socialist Revolutionaries
Context triple: [Second All-Russian Congress of Soviets, boycottedBy, Right Socialist Revolutionaries]

• A. Right Socialist Revolutionaries chosen
  The Right Socialist Revolutionaries were a moderate faction of the Russian Socialist Revolutionary movement that opposed the Bolsheviks and supported a more democratic, agrarian-based socialism during and after the 1917 revolutions.
• B. Labor Right faction
  The Labor Right faction is the socially conservative and economically centrist grouping within the Australian Labor Party that emphasizes pragmatic policy and strong ties to unions and business.
• C. White movement
  The White movement was a loose coalition of anti-Bolshevik forces—comprising monarchists, conservatives, liberals, and other opponents of the Russian Revolution—that fought to overthrow the Soviet regime during the Russian Civil War.
• D. Mensheviks
  The Mensheviks were a moderate socialist faction in the Russian Social Democratic movement that advocated gradual reform and broad-based party membership, in contrast to the more radical Bolsheviks.
• E. Old Bolsheviks
  The Old Bolsheviks were veteran members of the early Bolshevik movement and close associates of Lenin who played leading roles in the Russian Revolution before many were later purged under Stalin.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.