In April 1917 the illusion of isolation was destroyed. America came to the end of innocence, and of the exuberant freedom of bachelor independence. That the responsibilities of world power have not made us happier is no surprise. To help ourselves manage them, we have replaced the illusion of isolation with a new illusion of omnipotence. That screen, too, must fall. —"How We Entered World War I," Barbara Tuchman Using the same excerpt, how does the cause-and-effect structure support Tuchman’s viewpoint that the new illusion of omnipotence must also be shattered? Group of answer choices It shows that America was isolated. It supports her viewpoint with facts. It contrasts isolation with omnipotence. It shows that the war resulted in a new illusion of omnipotence.