Question

guided practiceprimary sourceabraham lincolns gettysburg addressfour score and seven years ago our fathers brought forth on thiscontinent, a new nation, conceived in liberty, and dedicated to theproposition that all men are created equal.now we are engaged in a great civil war, testing whether thatnation, or any nation so conceived and so dedicated, can longendure,...but, in a larger sense, we can not dedicate—we can not consecrate—we can not hallow—this ground. the brave men, living and dead,who struggled here, have consecrated it, far above our poor powerwhy did lincoln believe that winning the war and keeping the union in tactwas so important?a. we can not consecrate—we can not hallow—this groundb. we here highly resolve that these dead shall not have died in vainc. whether that nation, or any nation so conceived and so dedicated,can long endurecheck answer

Explanation:

Lincoln frames the Civil War as a test of whether the US, founded on the "all men are created equal" principle, can survive. Preserving the Union ensures this dedicated nation endures, matching option C. Options A and B address consecration of the ground and honoring the dead, not the core reason for winning the war.

Answer:

C. whether that nation, or any nation so conceived and so dedicated, can long endure