When analyzing a source, historian has to remain unbiased and free from personal feelings and opinions. They know that there are different source of an event and they may reveal different facts which could cross-check his argument. The objective historiography is possible only when the historian is unbiased and when different sources like archaeological, literary and other sources are cross-checked and interpreted independently.
Answer:
I think C is the correct answee
Tensions had been brewing throughout Europe—especially in the troubled Balkan region of southeast Europe—for years before World War I actually broke out.
Generally speaking, bythe early 1800's, much of Europe still had a less efficient transportation system than "<span>C. the Ottoman Empire" simply because the Ottoman Empire had a much more condensed system. </span>
