In the excerpts from Roosevelt's "Four Freedoms" speech and Lincoln's "Gettysburg Address," both presidents emphasize a commitment to their nation's ideals and the importance of preserving those ideals for the future. Roosevelt's phrase "this nation has placed its destiny" suggests a collective determination to uphold freedom and human rights, while Lincoln's statement "shall not perish from earth" underscores the enduring significance of the sacrifices made for those same principles.
Given this context, the correct answer is:
C. preserving freedom far into the future.