Correct answer is It provided valuable experience for the officers.
Explanation:
French and Indian War lasted for seven years and served as a valuable experience for officers of Continental Army. Israel Putnam, George Washington and many others participated in this war and were already seen as veterans who knew how to fight in war.
All other options are therefore false, as not only that it did not weakened them, but it strengthen their skills.
First, an unskilled worker can be easily replaced but another factor would be for the simple fact the manager most likely has the most experience in the field.
Two of the expected demands made by the Treaty of Versailles towards Germany are 1. Germany had to take sole responsibility for the war and 2. Germany had to lose much of its industrial areas.