Development & Use of Hieroglyphic Script Hieroglyphics developed out of the early pictographs. People used symbols, and pictures to represent concepts such as a person or event.The Egyptians developed the same system as the Sumerians but added logo grams which is (symbols representing words) and ideograms to their script.
It should be 1929 - 1932 because that's when it dropped the most. All of the other choices have sections where it rises back up.
The correct answer is B, the National Road.
The National Road was the first major managed road in the United States built by the federal government. Carried out between 1811 and 1837, the 1,000-kilometer route connected the Potomac and the Ohio River and was one of the western tracks for thousands of settlers.
Construction began westward in 1811 at Cumberland, Maryland, on the Potomac River. After the financial panic of 1837 and the ensuing economic depression, funds from Congress were dry and construction was halted in Vandalia, Illinois.