Who were the Harlem Hellfighters?

A.
an African American jazz band that first appeared in New York City during the 1920s

B.
an organization of African American intellectuals that fought against segregation

C.
an African American women’s group that rallied for suffrage rights

D.
an infantry regiment of African American soldiers that served in World War I

D. an Infantry Regiment of African-American soldiers that served in World War I.

Explanation:

The 369th Infantry Regiment was their actual name, formerly known as the 15th New York National Guard Regiment but they were soon nicknamed the Harlem Hellfighters. They spent more time in combat than any other American unit.

sorry i really dont know

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.