WW1 had left the German economy in shambles because of the reparations they had to pay. The sudden surge in demand for supplies made thousands of jobs for the unemployed and boosted the GDP.
Merchants and traders who travel along these routes must stop at oases to replenish food and water supplies and this means that whoever controls an oasis also controls the trade along the route—making oases desirable to political, economic, and military leaders.
The answer is B. Habeas Corpus
The Commercial Revolution lead many feudal and local entities to be diminished or disappeared entirely, but some reinvented themselves to become absolutist monarchies and national states. This violent process contributed to the Wars of Religion.
This culminated in the Thirty Years War (1618–48), within the Holy Roman Empire between German Protestants and their allies (Sweden, Denmark, France) and the Holy Roman Emperor and his Habsburg allies. It began as a religious war, but ended as a struggle for national superiority.