<span>After Pennsylvania experienced its oil boom in the year
1859, there were three other states that discovered vast oil reserves. Two of
those states were Texas and California. Texas oil reserves helped in a major
way during this period for the economic growth of the United States. By the end
of the year 1940 Texas was considered one of the biggest oil producing state of
the United States. Some other states that joined in this oil boom were
Oklahoma, Illinois and Kansas. </span>
Lincoln believed they committed acts of treason.
As much as C. has a partiality towards the cause of The Great War, it's most likely answer B.
The Germans declared war on the Russian Empire, guaranteed the independence of Serbia, because of their alliance backing Austria, and Serbia which the Austrians declared war on as a result of the Serbian citizen who shot the heir to the throne.
The rest of Europe's involvement was a chain reaction of countries coming to the aid of another. France with defending Russia, Britain defending Belgium, etc.
