During the Second Continental Congress, George Washington was appointed as the commander of the Continental Army, which was critical for the American Revolutionary War efforts. Other significant actions included establishing a postal system and preparing for future governance, but the Constitution and Articles of Confederation were addressed later. Therefore, the chosen option is D.
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During the Second Continental Congress, George Washington was appointed as the commander of the Continental Army. This Congress also laid the groundwork for future governance but did not draft the Constitution or quickly ratify the Articles of Confederation. Thus, the correct answer is option D. ;