Answer:
Its D.
Explanation:
A superimposed boundary can be defined as the boundary imposed on a geographical region or area by a colonizing, conquering or an external power and as a result of this, the preexisting cultural organizations and patterns are completely ignored.
Some examples of a superimposed boundary is the geometric boundary between Iraq and Saudi Arabia, Uganda and Kenya, as well as other boundaries imposed on Africa by the Europeans during the era of colonialism.
To expand his empire, Tang Taizong primarily tightened control of the provinces and inspired a higher sense of "belonging" in the empire, which appealed to many citizens.
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