Large scale departure of people
A. Migration
B. Emigration
C. Immigration
D. Exodus
Answer: Option D
Solution (By Examveda Team)
One word substitute is Exodus.Migration: seasonal movement of animals from one region to another.
Emigration: the act of leaving one's own country to settle permanently in another; moving abroad.
Immigration: the action of coming to live permanently in a foreign country.
Exodus: a mass departure of people.

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