Answer:
Jacksonian democracy was a 19th-century political philosophy in the United States that expanded suffrage to most white men over the age of 21, and restructured a number of federal institutions. ... It built upon Jackson's equal political policy, subsequent to ending what he termed a "monopoly" of government by elites.
The correct answer should be the third one you listed. The "current drag" then is a device that is used in order to measure the sub-surface currents. This device and the measurements it provides are extremely important for the field of oceanography which studies the aspects of the oceans both the physical and the biological ones.
What are the options? There is no map.
It caused the separate but equal. Everything the whites had the blacks had too. If the whites got a school then the blacks did too. If the whites had a dining area the blacks did too. I really don't mean to sound racist. I just don't know how else to explain it.