2. how did our nation's economy change during the “times of trouble” period?

The defining economic legislation adopted during this era was the Federal Reserve Act, ... How was the institutionalization and centralization of the nation's banking and to historians the most important is the great increase in the gold supply with the have been conducted there with greater difficulty in times of trouble.

Explanation:

b, public works good luck

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.