Triple

Target entity: Russian Orthodox Church
Context triple: [National Unity Day, observedBy, Russian Orthodox Church]

• A. Russian Orthodox Church chosen
  The Russian Orthodox Church is the largest autocephalous Eastern Orthodox Church, historically centered in Russia and influential across the Slavic and wider Orthodox Christian world.
• B. Russian Orthodox Old-Rite Church
  The Russian Orthodox Old-Rite Church is a traditionalist Eastern Orthodox body that preserves the pre-reform Russian liturgical practices and rituals rejected by the main Russian Orthodox Church after the 17th-century Nikonian reforms.
• C. Ruthenian Orthodox Church
  The Ruthenian Orthodox Church was an Eastern Christian body of the Ruthenian people that followed the Byzantine rite and became historically significant through its partial union with Rome and the formation of Eastern Catholic communities.
• D. Russian Orthodox Church Outside Russia
  The Russian Orthodox Church Outside Russia is an autonomous ecclesiastical jurisdiction of the Russian Orthodox tradition, formed by émigré clergy and faithful after the Russian Revolution and historically based outside the Soviet Union.
• E. Russian Catholic Church of the Byzantine Rite
  The Russian Catholic Church of the Byzantine Rite is an Eastern Catholic Church of the Byzantine tradition that preserves Russian liturgical and spiritual heritage while being in full communion with the Pope and the worldwide Catholic Church.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.