Which social problem did upton sinclair's novel the jungle describe? a. the struggles of black americans b. the living and working conditions in chicago's stockyards c. the ruthless business methods of john d. rockfeller and standard oil d. the conflict between california farmers and the southern pacific railroad.

The correct answer is Option B.

The social problem discussed in the novel "The Jungle" by Upton Sinclair is the despair of the immigrants who are working in Chicago stockyards and reveals the industry's awful working and living conditions, primarily pointing out the unsanitary conditions.

workers should be given a fair share of the wealth their work creates

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1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office