Common examples of secondary sources include academic books, journal articles, reviews, essays, and textbooks
The correct answer is "They advise the President on policy matters". Independent executive agencies are technically part of the executive branch, but the are not directly controlled by the President of the United States and they do not advise the President. The Executive Office of the President (EOP) are the agencies that advise the President in policy matters.
During the isolation, they managed to create a distinct cultural identity and a society that reflected their values because they did not have anything from foreign lands to affect their beliefs. They eventually met economic problems which led to the end of the isolation period and the country entered the Meiji restoration.
C. huge tunnels were built for sewer lines
