Before the split in 1054, the leaders of the eastern church and the western church were a-the patriarch and the pope. b-justinian i and the pope. c-the pope and theodora. d-the patriarch and theodora.

Before the split in 1054, the leaders of the eastern church and the western church were the patriarch and the pope. Option A is correct.

Nowadays, the highest-ranking bishops in Eastern Orthodoxy, Oriental Orthodoxy, the Catholic Church (above major archbishop and primate), and the Church of the East are known as patriarchs.

Schism of 1054, also refered to as East-West Schism, was event that precipitated the final split between the Eastern Christian churches (led by the patriarch of Constantinople, Michael Cerularius) and the Western church (led by Pope Leo IX).

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.