Answer: How many Roman emperors ruled during the 50-year period covered by this. ... What message might these frequent and violent changes in leadership have sent to ... The message it could've sent was that their government was falling apart, & it is ... violent changes in leadership have sent to people living outside the Roman ...
Explanation:
Frederick was the last Hohenzollern monarch titled King in Prussia.
It was bad for the nation
This may help,
http://www.history.com/topics/robert-mugabe
The Answer is going to be C.
Hope this helps :)