They germans used u-boats
The best way to measure public opinion is through opinion polls - B
With opinion polls you get an idea what is the general idea about a certain topic from the public, as you usually get a high enough sample to deduce the relevant information.
To answer your second question I would say it is either B or C as being a sole proprietor usually makes you subjec to being a small business or you're forced to use factors of production less efficiently.
Answer:
True
Explanation:
I think so but im not sure
The answer is c they learned how to grow food and survive from the american indians
The answer would be true because 369 days in a year