Answer:
It was traded for other useful goods.
Explanation:
Salt was often a foreign, luxurious material not commonly found in European countries.
It gave them company-owned towns in which to live. Verified. I took the test.
If I was an ordinary person in my 1930s and aged 40 with a middle income job such as an 'office assistant', I would not be in favour of helping other countries.
I would personally prefer a policy of isolation from the rest of the world. Primarily, this would be because I had seen with my very won eyes, the death and destruction bought on by World War I and more importantly the Great Depression.
With millions of job less people, poverty and people barely making ends meet, I would want our government to concentrate on the welfare of our own people, rather than go to war with countries thousands of miles away.
So they can be made for less money than conventional buildings.
Longevity in life and a brighter future for technology