Answer:
The discovery of the Spindletop geyser in 1901 drove huge growth in the oil industry. Within a year, more than 1,500 oil companies had been chartered, and oil became the dominant fuel of the 20th century and an integral part of the American economy.
Explanation:
D is the correct answer
Interestingly enough, the world did not see an increase in the number of hijackings after 9/11, which possibly could be credited to increased security measures.
Answer:
Unions simply do not provide the economic benefits that their supporters claim they provide. They are labor cartels, intentionally reducing the number of jobs to drive up wages for their members. In competitive markets, unions cannot cartelize labor and raise wages. Companies with higher labor costs go out of business.
The top people were all very rich bankers, merchants, and manufacturers.