7. What body of water would British troops have to cross to fight in Germany?

the open water of the English Channel.

Explanation:

Some 10,000 troops of the division were captured when German troops overran Saint-Valéry-en-Caux on June 12. Britain was helpless in the face of a seemingly all-conquering foe that stood just a few miles away, across the open water of the English Channel.

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.