(C) For the longest time Europeans and other outsiders could not travel into central Africa due to the various disease they were not immune or accustomed to, as it meant almost certain death for anyone not native to the area.
Does it have multiple choice? I know the answer, I just want to make sure it's in the multiple choice.
Answer:
World War I, originally called the Great War, resulted in more than nine million deaths. The official starting point was the assassination of the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand of Austria. However, this was simply the spark that lit a tinder keg of overbuilt armies, imperial tensions, and complex alliances creating two opposing political forces in Europe: the Allies and the Central Powers.