Possibly the last one or the third one.
Isolationists didn't want to join European schemes or war efforts. The Lend-lease program was a program by the government to help send help to Europe but isolationists wanted to stay on their continent and not participate in any of the affairs there.
Answer;
-They wanted to make the announcement following a union victory.
Explanation;
-The members of Lincoln's cabinet urged him to wait before announcing the emancipation of southern slaves because they wanted to make announcement following a union victory.
-The Emancipation Proclamation granted freedom to the slaves in the Confederate States if the States did not return to the Union by January 1, 1863. Also under this proclamation, freedom would only come to the slaves if the Union won the war.
Answer: Please see below
Explanation: During the cold war ,the House Un-American Activities Committee (HUAC) was created as an investigative body of the United States House of Representative to investigate disloyal Americans who were termed Communist because of the Red Scare that caused tension n America due to the belief that some communists within and outside America were planning to destroy America.
Also McCarthyism became popular during the Red scare because it brought about unessessary and unlawful charges against many Americans especially those in government , labour unions, and those in entertainment based on assumptions
that many of them were Communist thereby increasing fear and suspicion among the American people.