Answer:
They divide the Earth into 4 geographical sides. The lines can help travelers and people for this reason.
Featured snippet from the web:
A political party is an organized group of people who have the same ideology, or who otherwise have the same political positions, and who field candidates for elections, in an attempt to get them elected and thereby implement the party's agenda.
Minor parties in the U.S. include the Libertarian Party, the Green Party, Constitution Party
Answer:
B) 15-30 degrees north and south of the equator.
Explanation:
Got it right on edge. :)