The answer is option D "a document made by someone who actually saw an event." A primary source would be like a witness during a event. They can give reliable information on what happened during that event. Main primary sources are: documents, pictures or photographs, and objects that can explain what happened during a event.
Hope this helps!
"rule of thumb," or simple habit and common sense, and instead use the scientific method to study work and determine the most efficient way to perform specific tasks.
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:
the Bill of Rights of the US Constitution protects the basic freedoms of United States citizens it protects freedom of speech freedom of religion the right to keep and bear arms freedom of assembly and freedom of petition
