The correct answers are A) Washington had a difficult time getting the soldiers from different States to see themselves as united and part of the same country. B) Enlistments for militia service were often set for only one year in the beginning. C) The States often failed to send needed supplies. E) Troops from each state consisted of militias with different levels of training.
When George Washington was named General of the Continental Army by the Second Continental Congress, he knew that his soldiers were unprepared, they were not professional soldiers, and lacked the proper training and support. That is why, during the winter of 1777-1778 in Valley Forge, Washington invited Prussian military Officer von Steuben to train the Continental troops, and it worked. The American Army defeated the British troops in the Revolutionary War.
So yes, the challenges faced by George Washington and the Continental Congress in creating the Continental Army were the following: Washington had a difficult time getting the soldiers from different States to see themselves as united and part of the same country; enlistments for militia service were often set for only one year at the beginning; the States often failed to send needed supplies, and the troops from each state consisted of militias with different levels of training.