Answer:
a. The dispute about the use of icons caused conflict within the Eastern Church, as well as with the Western Church
Explanation:
The Iconoclastic Controversy turned out to be one of the crucial things that caused the split of the Western and Eastern Churches. The Eastern Church had problems in its circles because of this, and there were tensions for some time, though eventually the opinion that they can be used prevailed and they were largely accepted. With the Western Church it was another story. The conflict became very big religious dispute, with the Western Church being strongly against the usage of paintings of Jesus, Virgin Marie, and the saints while the Eastern Church was standing more and more strongly for it. This caused lot of tensions, and eventual separation of the churches, giving rise to the Catholic Church in the West, and the Orthodox Church in the East.