Laissez-faire policy during the gilded age, in which government let businesses function without regulation, reflected the constitutional principle of

Limited government

A limited government is one whose legalized force and power is restricted through delegated and enumerated authorities and principles of the constitution. The United States is an example of such government as the state’s actions are limited by the constitution.  

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.

the answer is c have a good day