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.
After spending the winter in Vinland, Leif sailed back to Greenland, and never returned to North American shores. He is generally believed to be the first
Answer:
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I. ... Germany also believed that the United States had jeopardized its neutrality by acquiescing to the Allied blockade of Germany.
Explanation:
The key requirement for States as a result of the Help America Vote Act was that States were required to update their voting machines and training for poll workers.
