Liberties, the rights that are given to each individual.National Government, the central government was not given all the power, it was distributed between the central and state government. This allowed for liberties of individuals to be protected within states and also the governments shared powers so the National Government wasn't the all-powerful.
B. Because even with many issues that plagued the Roman Empire economically and politically, By the later years of the empire the Roman military was mainly comprised of trained Barbarian soliders who were inferior to earlier Roman soliders causing a significant decrease in the Roman Empires's Military capablities so many barbarian tribes that began to grow such as the Huns, Vandals, Goth etc. Put immense pressure on the Empire, driving them into the ground economically and causing many issues within the government and eventually being sacked, thus marking the end of the Roman Empire. Sorry for the wall of text but hope this helped :)
The answer to your problem is No.
<span>The Japanese reached Guadalcanal in May 1942. When the allied forces spotted construction of an airfield on Guadalcanal, It was one of the most hotly contested campaigns for control of the ground, sea and skies of the war. Guadalcanal became a major turning-point in the war as it stopped Japanese expansion.
-Wikepedia
This should answer all your questions. I hope it helped. Have a great night!
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The correct answer is B. Social, Economic, and Political Reforms.