D). A true story of an act of terror followed by a show of American strength.
Explanation:
As per the question, option D i.e. 'A true story of an act of terror followed by a show of American strength' displays the evidence that would best back the president's claim in the given excerpt. <u>The inclusion of a true story that displays the strength of Americans would assist the president in substantiating his claim 'No act of the terrorists will change our purpose, or weaken our resolve, or alter their fate'</u> and establish its credibility which would enhance the impact of his message and encourage the audience to show their strength and valor to win the 'war on terror'. Therefore, <u>option D</u> is the correct answer.
if you give love, and they don't give any in return, you're wasting your time on somebody that does not value you. you shouldn't chase people who turn their backs on you.