Answer:
The business moved to Mexico because of a quota established by the U.S.
Explanation:
Quotas are a set minimum or maximum amount of a product that can be imported or exported to a country, as a part of their economic policy. This restriction can be used to protect domestic industries from foreign competition or to keep a local industry from a shortage of certain products.
For this particular case, the restriction is an Import quota that limits the amount of sugar that can be brought into the United States. That is why the manufacturer decided to move operations to Mexico, where there is no such restriction.