North is all about industry and south all about slave
B)The United States should develop all of its natural resources
C)The United States should encourage fuel efficiency
The Democratic Party supports efforts to find renewable resources and to be more self-sufficient for US energy needs.
The Democratic Party has attempted to invest government money into renewable resources. The party wants to move the US to solar or wind energy to move the US from oil dependence. The Democratic Party also has supported subsidies for those using fuel efficient vehicles or tax cuts for fuel efficient upgrades.
An important scientist at the time, besides, those who were mentioned was Copernicus - A.
Spartacus was just a slave general in the Roman republic.
Rousseau was a philosopher.
Plato was a philosopher as well.
The correct answer for that reason is Copernicus, he was an astronomer and a major figure at the time.