In the years prior to World War II, Japan underwent different policies which were aimed at expanding their nation and militarizing their society with the sole purpose to try and conquer the area around China and Southeast Asia - also because it was very close to them. The correct answer is therefore B.
The Republican Congress built up military areas in the South and utilized Army work force to oversee the locale until new governments faithful to the Union—that acknowledged the Fourteenth Amendment and the privilege of freedmen to cast a ballot—could be set up.
It begun around the beginning of the 1830s