D would be the most appropriate. C and B would be very bias, especially since C was written by a general in World War II, meaning that it would only be his point of view and not the other argument. D, is by a trustworthy newspaper columnist (since it's popular) who has read both books and written a view on both which would most likely not be very bias.
Answer: A, B and D
hope this helps :)
John Calvin created the modern democracy. For example the US, the people get to vote for who they want for their leader and the person with the majority of the votes wins.
Genghis kong was the leader that United China and lead forces to the Roman empire