The main reason why the Harding administration responded to growing public fears of communists and anarchists is because it did not want to seem "weak" in the eyes of Harding's adversaries, who were looking to replace him in office.
Amendment<span> I. Congress shall make no law respecting an establishment of </span>religion<span>, or prohibiting the free exercise thereof; or abridging the </span>freedom of<span> speech, or of the </span>press<span>; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.
</span>
I think its A, I might not be correct though. <span>the Securities and Exchange Commission(SEC)—to prevent another stock market crash by more government control/regulation in stock transactions.</span>