I NEED HELP ASAP!! How does Eisenhower develop his claim in paragraph 2?

A: He explains the reasons for the German invasion of Europe.

B: He expresses concern about the loss of lives that may come from battle but reiterates
the importance of fighting for liberty.

C: He details the ways that Allied forces have improved their strategies and resources,
resulting in great defeats for the enemy.

D: He establishes the serious nature of the impending battle and that America, along with
the Allied troops, are working together to defeat the enemy.