When ancient cities get lost in China, they get lost in places like Anyang. The ebbs and flows of 20th-century history rushed across this part of the Yellow River plain, leaving their traces like so much jumbled driftwood. Outside of Anyang stands the tomb of warlord Yuan Shikai, who briefly seized control of the nation in the 1910s. Anyang's new downtown—white tile, blue glass—is a monument to another conqueror, the modernization of post-reform China. Wedged between the tomb and the town, there's an old airstrip that was built by Japanese imperialists during their occupation in the 1930s.
I believe the answer is: increasing complex societies have a lot of religious leaders
According to diamond, Religions would influence the type of leader that seen as a ideal within a society since the persona of an ideal leader tend to be regulated in the religions' sacred text. This would also lead to the type of government system that seem favourable over another and the type of law that should be inmposed to all citizens.
There's no sample answers but i'll list some...
Majority Rule
Voting
Freedom of Religion
Individualism
etc.
Not 100% sure to be honest.. i’m sorry :( i wish i could help.