The answer is a.
The Populist Party was originally formed by farmers in response to the growing threat big companies had on them. So that rules out b through d.
If you want me to give you a more detailed explanation of the Populist Party, let me know because I just had a final on this in college. :)
Conceived as "Three Days of Peace and Music," Woodstock was a product of a partnership between John Roberts, Joel Rosenman, Artie Kornfield and Michael Lang. Their idea was to make enough money from the event to build a recording studio near the arty New York town of Woodstock
B. Mao's focus on rural steel production led to widespread famine and starvation.
Due to the immense focus of the rural population on producing steel, and environmental disasters (Great Chinese Famine, 1959-1961), the resulting consequence was failure to produce enough food to sustain the population (leading to widespread famine and starvation).
