Which factor is likely to be of concern in a developed nation in the twenty-first century?
a) low gdp
b) slowing economic growth
c) populations that are growing too quickly
d) labor shortages in manufacturing

From the earliest starting point of the war, an objective of the Union armed force was to catch the Confederate capital at Richmond. Petersburg had been the last barrier in Grant's way. Following a nine-month attack, Grant at long last drove Lee's armed force out of that city. Jefferson Davis realized that Richmond was devastated.