Answer:
If Germany wins World War I, they get into a strong position [against the rest of Europe] and then there’s almost certainly a war about ten years later, in which the British are defeated. So the British have absolutely no motive for letting this happen.
Explanation:
The mercantilist policy was created by England in the 17th century around the mid 1650s, in which basically they imported raw materials from the colonies to process it and transform into manufactured products to be later sold to other countries, creating a new way of trading.
The answer to your problem is 21 years of age