The personal income tax did not become permanent in the United States until the First World War; before that time the federal government was dependent on tariffs to be their main source of revenue.
A. the federal government was dependent on tariffs to be their main source of revenue
B. the federal government had depended on tariffs as its main source of revenue
C. tariffs were what the federal government was dependent on to be its main source of revenue
D. the main source of revenue for the federal government was dependent on tariffs
E. for their main source of revenue, tariffs were depended on by the federal government
Correct Answer Below (so you don’t see it while reviewing the question)
Correct Answer: B
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