This so-called "Big Bonanza" made "John William Mackay" the richest man in the world, since the discovery led his business shares to the point where he was valued at roughly 1 billion dollars.
After the end of the Second World War, and the division of Germany into interest zones, an activity began to mark the policy of great powers in the coming decades. While in Eastern Europe Stalin began with the establishment of communist regimes, and the spread of communism, the US worked with its allies to stop the spread of communism. One of these strategies was to secure fair and democratic elections in the Western states.
The answer is: C.
The Populist Party is a protest from farmers in the South and MidWest against the Democratic and Republican countries for taking for granted their difficulties and struggles. A lot of farmers suffered from crop failures, poor facilities and marketing and has been buried in debts due to drought and other calamities. All these struggles fueled with anger to all railroads, money lenders and to those who contributed to their misery led the farmers to protest. In the long run, the Populist Party fused with the Democratic Party and soon disappeared as one political force.