Which of these explains how Warren Harding's presidential administration reflected a return to isolationism in America? A He believed in having a strong army even during peacetime. B He believed in non-interference in international affairs. C He supported the idea of government involvement in citizens' affairs. D He supported revolutionary international workers movements.

## Step 1<br />The question is asking us to identify which of the given options best explains how Warren Harding's presidential administration reflected a return to isolationism in America. Isolationism is a policy of remaining apart from the affairs or interests of other groups, especially the political affairs of other countries.<br /><br />## Step 2<br />We need to evaluate each option in light of the definition of isolationism.<br /><br />## Step 3<br />Option A suggests that Harding believed in having a strong army even during peacetime. This does not necessarily reflect isolationism, as having a strong army could be part of an interventionist policy.<br /><br />## Step 4<br />Option B suggests that Harding believed in non-interference in international affairs. This aligns with the definition of isolationism, as it involves not interfering in the affairs of other countries.<br /><br />## Step 5<br />Option C suggests that Harding supported the idea of government involvement in citizens' affairs. This does not reflect isolationism, as it involves government involvement in domestic affairs.<br /><br />## Step 6<br />Option D suggests that Harding supported revolutionary international workers movements. This does not reflect isolationism, as it involves international involvement.