Progressive Era was a period of econormic, political, and social reform in the United States. The era began in the 1890's, during a nationwide economic depression, and was over by the time the United States entered World War I in 1917. Many of the reforms of the Progressive Era were enacted at the local and state levels. However, the U.S. Congress also adopted some key measures. Industry in the United States had grown swiftly during the 1800's. This fast growth caused such problems as corrupt politics, city slums, and poor working conditions in factories and mines. In the 1890's and early 1900's, many reformers helped bring about laws aimed at relieving these problems. These reformers began to call themselves progressives about 1905. Which statement most accurately defines era as it is used in the text? O a matter of months O an increasing set of years an amount of time in which things get better O a length of time in which something happens

Progressive Era was a period of econormic, political, and social reform in the United States. The era began in the 1890's, during a nationwide economic depression, and was over by the time the United States entered World War I in 1917. Many of the reforms of the Progressive Era were enacted at the local and state levels. However, the U.S. Congress also adopted some key measures. Industry in the United States had grown swiftly during the 1800's. This fast growth caused such problems as corrupt politics, city slums, and poor working conditions in factories and mines. In the 1890's and early 1900's, many reformers helped bring about laws aimed at relieving these problems. These reformers began to call themselves progressives about 1905. Which statement most accurately defines era as it is used in the text? O a matter of months O an increasing set of years an amount of time in which things get better O a length of time in which something happens