<span>After the oil boom that happened in Pennsylvania during
1859. 3 other states started to discovered vast oil reserved in their country.
=> 2 of these countries are California and Texas.
=> For Texas, it was a great opportunity to be able to discover vast oil
reserves for their country because it helped a lot with their economic growth.
During 1940, Texas was already considered as the one of the biggest oil producing
state.
Later they were joined by Kansas, Oklahoma and Illinois.
</span>
its C : Germany had to invade Belgium to get to northern France but not the Netherlands
Your most logical answer would be: East; West; New
It was B. border dispute with Mexico
