Answer:
C). America will fight anytime freedom is threatened in our country as well as in other countries.
Explanation:
As per the question, option C i.e. 'America will fight anytime freedom is threatened in our country as well as in other countries' displays the idea that is implicit from the passage that has been taken from 'FDR's Fireside Chat after the attack on Pearl Harbor'. The author conveys the message implicitly that 'Americans will battle every time with the same strength and courage when the freedom of their country comes under a threat' and 'will make very certain that this form of treachery shall never endanger us again' and 'will never isolate themselves again from humanity.' Therefore, this message could be inferred through these phrases and hence, option C is the correct answer.
