The allies adopted a “europe first” strategy because

japan’s victory at the battle of coral sea had frustrated allied objectives.
germany, italy, and japan developed a coordinated strategy for victory.
italy threatened to conquer from the eastern adriatic to east africa.
only germany was considered a serious long-term threat.

The best and most correct answer among the choices provided by your question is the fourth choice or letter D.

The Allies adopted a “Europe First” strategy because: only Germany was considered a serious long-term threat.

I hope my answer has come to your help. Thank you for posting your question here in . We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

4. djsndbdjdbsjdbsbbxjx