Manichaeism was feared by imperial states because it
a. Was based on a strong missionary and conversion movement similar to the cult of Isis.
b. Was seen as a threat to public order and was suspected as a threat from an outside nation.
c. Denied the divinity of the emperors and supported individual freedom of conscience.
d. Promoted violence among the dissatisfied slave classes and contributed to slave revolts.
Generally speaking, Manichaeism was feared by imperial states because it "b. Was seen as a threat to public order and was suspected as a threat from an outside nation," since these people were very isolationist at the time.
