Answer/Explanation
It extends from the sea surface to the bottom of the ocean, and encircles Antarctica. It is vital for Earth's health because it keeps Antarctica cool and frozen. ... The tightest geographical constriction through which the current flows is Drake Passage, where only 800 km separates South America from Antarctica.
Reapportionment and redistricting mean essentially the same thing. After a Census has been completed, it must be determined if a state’s government as well as that state’s county, and local governments have sufficient representatives for their population. While Gerrymandering also means redrawing district boundaries, but it includes a lot of politics in the process.
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Your answer is C hope this helps