How did Upton Sinclair contribute to the Progressive movement? A. He invented new ways to mass-produce goods.
B. He helped take pictures of laborers working in canneries.
C. He fought for more pay for workers in automobile factories.
D. He wrote a novel that exposed problems with how meats were processed. What is the value of the expression below?

porter is writing economic history because he is focusing on the cost of developing vaccines.

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

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