I think it’s the second one and the third one.
I hope this helps :)
Elementary schools were built in mass numbers as birth rates skyrocketed when US soldiers came home.
High school curriculum became more specialized also
In the 1670s, the first significant groups of German immigrants arrived in the British colonies, settling primarily in Pennsylvania, New York, and Virginia. Immigration continued in very large numbers during the 19th century, with eight million arrivals from Germany.
Saudi Arabia
Explanation:
I would say Saudi arabia as it has lots of oil
