False.
The amount of years for service varied and was decided by the contractor, for adults it was typically around 4 to 7 years but it wasn't always only seven years.
Hope this helps!
The correct answer to this open question is the following.
You forgot to include the options for this question. However, we can say the following.
This excerpt from John Hay's Circular Letter became part of the "Open Door policy."
Yes, it is true that Jhon Hay, Secretary of State in the United States government created the idea of the open door policy for China at the beginning of the 1900s. What was the goal of the US government? To secure a favorable position to trade with China, offering the government of China the kind of respect for their history, traditions, and territory. So it was the first official agreement the United States wrote to became the international trade policy with Asian countries.
This i do not know sadly but i did some research for you and google says and i quote
"When Virginia declared its secession from the Union in April 1861, Lee chose to follow his home state, despite his desire for the country to remain intact and an offer of a senior Union command. During the first year of the Civil War, Lee served as a senior military adviser to Confederate President Jefferson Davis".
