In 1054, what action did the leaders of the Eastern and Western Churches take against each other?(1 point)
Responses
a. Both the pope and ecumenical patriarch adopted Latin as the formal language of the Christian Church.
b. Both the pope and ecumenical patriarchy supported iconoclasm and the destruction of religious icons.
c. Both the pope and ecumenical patriarch launched crusades into opposing territories.
d. Both the pope and ecumenical patriarch excommunicated each other.