Which senior bishop, whose full title includes 'of Moscow and All Rus'', is the primate of the largest Orthodox jurisdiction?

• A The Patriarch ✓
• B The Metropolitan
• C The Archbishop
• D The Exarch

The Patriarch of Moscow and All Rus' (Патриарх Московский и всея Руси) was restored in 1589; the office was abolished by Peter the Great in 1721 and re-established in 1917.