Analyzing Abraham Lincoln's Message: What Inference Can Be Drawn from the Gettysburg Address?

Question: Which of these inferences is most strongly supported by the text below? Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battlefield of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. Answer choices for the above question A. Lincoln feels he must explain the definition of a civil war. B. Only some of the dead will be memorialized where they fell in battle. C. Lincoln is not certain that the Union will be victorious. D. Lincoln wants to ease racial tensions in the South.