I Picked B..but it was not right..which one is right one..

A. the people became complacent due to the egalitarian nature of Greek society.
B. the response to the cry for strong leadership from the established aristocratic oligarchies. 0% Incorrect.
C. the religious beliefs of the Greeks collapsed.
D. the result of foreign invasion, mainly the Persians under Darius.
E. a reaction to aristocratic power and a widening gulf between the rich and the poor.