Answer:
Correct answer is A. The U.S. army lacked proper equipment and military training.
Step-by-step explanation:
A is the correct answer because this was the greatest problem for the soldiers as they were lacking provisions, weapons, clothes... Even general Washington in his letters was constantly stressing out certain shortages, especially when they were located in Valley Forge.
B is not correct as army had experienced generals such as Putnam, Greene, Washington who made a lot of good decisions.
C is not correct as the colonists of course had better understanding the territory where they were living since they were born.
D is not correct as France made alliance with Americans, not British army.