What are political boundaries? a. territory lines on maps that define the boundaries of nations or states b. undefined political assertions of land ownership c. any de-militarized zone that exists due to international intervention d. territorial lines that have existed ever since the earliest empires

The correct answer is A. Political boundaries are territory lines on maps that define the boundaries of nations or states.

Explanation:

A political boundary is a space of varying thickness, from a imaginary line to a particular space, separating or joining two territories, in particular two sovereign states. The functions of a political boundary can vary greatly according to regions and periods. Between the countries of the Schengen area, it is only a political and legal limit which does not obstruct the movement of people and goods, whereas between the two Koreas, it is materialized by a broad band monitored militarily and its crossing is very limited.