How has New York changed 3 years after the war?

According to U.S. Census Bureau population estimates, New York City's population increased from 8,175,133 in April of 2010 to 8,398,748 in July of 2018. This is an increase of about 224,000 residents over the 2010 mark, or 2.7 percent.  hoped i was able to help:)))

c.) the country needed a stronger central government.

the answer is mass marketing.