Which of the following sentences from the speech best develops a central idea? what has been done is the greatest achievement of organized science in history. before 1939, it was the accepted belief of scientists that it was theoretically possible to release atomic energy. let there be no mistake; we shall completely destroy japan’s power to make war. the fact that we can release atomic energy ushers in a new era in man’s understanding of nature’s forces. which of the following sentences from the speech best develops a central idea?

what has been done is the greatest achievement of organized science in history.

before 1939, it was the accepted belief of scientists that it was theoretically possible to release atomic energy.

let there be no mistake; we shall completely destroy japan’s power to make war.

the fact that we can release atomic energy ushers in a new era in man’s understanding of nature’s forces.