I think the answer is C
Hope this helps
1. Usually lived frugally
2. Generally speaking they arrive poor
3. They were willing to live in lower income housing than most native citizens
4. They were stuck in the lowest paying jobs upon arrival, and were not favoured for promotions
5. Migrant workers change the culture of a country by integrating themselves over time
For the answer to the question above, I believe that the answer is a. Productive Technology. The computers that we have now. The automation of businesses and by the productive technology we can make things easier and efficient.
I hope my answer helped you.
