The correct options are
B The religion followed by the majority was Russian Orthodox Christianity.
D Russia was a major exporter of grains.
In 1914, the Russian Empire was ruled by Tsar Nicholas II of the Romanov family. The religion followed by the majority was Russian Orthodox Christianity which had grown out of the Greek Orthodox Church. The Russian society consisted of the Tsar, nobles, factory workers, craftsmen, and agriculturalists. A large majority of the Russian population were agriculturalists; Russia was a major exporter of grains. The cultivators of Russia produced grain for their own needs, the local market, as well as for export.