Oil
Africa's youngest country has one of the best world oil reserves. Previously, the country was part of the bigger Sudan,mainly controlled by Muslims, who impoverished the south a great deal. the christian majority south waged a war of secession, which ended up in a vote to divide the country.
<span />
It is C "It was built as the entrance to the Industrial Exploration of 1886
In 1945 the U.S forces battled with the Imperial Army A.K.A, the Japenese.