Answer :
The Great Migration was such an important part of the Progressive Era because it showed the shift from an agricultural based-economy into an industrial- based economy. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer helps you.
Answer:
A. It showed the shift from an agricultural based-economy into an industrial- based economy.
Explanation:
During the great migration, Many individuals from the south chose to forsake their agrarian field move into northern states in quest for job opportunities as labor workers for factories. It is recorded that in excess of 6 million individuals moved from southern states toward the northern states at the time.