Question

Which sentence from Roosevelt's historic speech best develops the key concept that America must engage in war to defend itself? through to victory

a. no matter how long it may take us to overcome this premeditated invasion, the American people . . . Will win through to . . . . victory.
b. there is no blinking at the fact our people, our territory, and our interest are in grave danger.
c. last night the Japanese attacked Wake Island
d the Japanese government also launched an attack against Malaya​

Answer 1

The sentence that best develops the key concept that America must engage in war to defend itself is:

"No matter how long it may take us to overcome this premeditated invasion, the American people . . . Will win through to . . . . victory." (Option a)

This sentence emphasizes the determination of the American people to fight and win the war, even if it takes a long time. It highlights the idea that victory is necessary to defend the nation against the premeditated invasion by the enemy. The phrase "win through to victory" suggests that the American people will persevere and ultimately triumph over the enemy, reinforcing the idea that the war is a necessary means of defending the nation.