Answer:
Correct answer is that The iconoclasts' fear that adoration of icons would lead to idolatry .
Step-by-step explanation:
During the reign of Byzantine ruler Leo III the idolatry was prohibited and people were not allowed to worship icons. This created a large conflict inside of the church, that lasted until the period of Empress Irene that officially reestablished the usage of icons. It was conflict that shook only the church, but the whole country.