B.
On September 8, 1900, a Category 4 hurricane ripped through Galveston, Texas, killing an estimated 6,000 to 8,000 people. At the time of the 1900 hurricane, Galveston, nicknamed the Oleander City, was filled with vacationers. Sophisticated weather forecasting technology didn’t exist at the time, but the U.S. Weather Bureau issued warnings telling people to move to higher ground. However, these advisories were ignored by many vacationers and residents alike. A 15-foot storm surge flooded the city, which was then situated at less than 9 feet above sea level, and numerous homes and buildings were destroyed. The hurricane remains the worst weather-related disaster in U.S. history in terms of loss of life.
I believe that it is B however, I'm not positive.
The dynasties created gunpowder, porcelain, and paper currency which would benefit the economy. Politically, people were able to move around the empires, many cities gained a higher population, thus leading to a social advancement.
They used at the earliest inhabitants the Egyptian lived in hut mace of papyrus reefs.
