The answer, I believe, is C salt
Sperry or Sperry Top-Sider is an American brand of boat shoe designed in 1935 by Paul A. Sperry, older brother of writer and illustrator Armstrong Sperry, whose books often featured a sailing theme. Sperrys, or Top-Siders, were the first boat shoes introduced into the boating and footwear markets.
Laissez-Faire is an economic policy that says governments should not interfere with the free market; let the market develop on its own.
Much of the time when this was an issue, supplies and reinforcements could not reach the Continental Army because of "a blockade", since this was prominent British strategy during the Revolutionary War.
The Correct answer would be D. Caribbean Sea (:
