They did this by ruling in the Slaughterhouse cases that the 14th amendment only protected rights from the federal government. This led to the states being able to undermined legal and civil right of African American citizens.
The flurry of investing artificially raised the price of stocks
The value of stock in speculative investing would be depended on the amount of people who buy the stocks rather than the company's performance in the market. This would give the impression that a price for a stock is higher than it supposed to be and weaken the stability in the stock market.
The answer for your question is option B.
B.White men did not have to compete for jobs
Hope this helps!
A + 2a + a + 6 = 34
3a + 6 = 34
3a = 28
a = 9.3
John Constable took his easel out of his studio and set it up in the open air to capture the scenery of his native southern England