Answer:
D-It created a less rigid social class system.
Explanation:
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Answer:The Texas oil boom, sometimes called the gusher age, was a period of dramatic change and economic growth in the U.S. state of Texas during the early 20th century that began with the discovery of a large petroleum reserve near Beaumont, Texas.
It is the constitutionally of a federal statute by filing a lawsuit in court seeking to declare the federal law unconstitutional. Such a lawsuit is decided by courts.
