In my research I have found that the answer is D, here's why.
Sectionalism is to pay more attention to the politics in the area local to where you reside rather than paying attention to politics on a federal level (unless of course you live in the country capital.) Federalism is the exact opposite.
D. in a straightforward, objective manner
Nations have been concerned by the potential for rival states to be more powerful in regards to their nuclear capabilities. The logic goes that if one state disarms and others don't the state that disarms will be left weaker relative to the others. Also there is an issue of how to dispose of the nuclear missiles as well.
The correct options are (1) the decrease in inflation rates and (6) the number of new jobs created.
President Carter's speech gives an insight into American' economy: it has improved, however, there is an inflationary threat still and a plan to fight the economic downs continues to be necessary. To support that his plan is a good one, he presents favorable evidence during his term: Inflation rates decreasing and Employment rates increasing.