Answer:
Independent workers; tax preparer working his own business and freelance writers.
Explanation:
A sole proprietorship is also known as individual entrepreneurship and it´s a type of enterprise run by one person only, there is no legal distinction between the business and the person in charge. The proprietor is the receiver of all the profits but also responsible for all the losses and debts. It´s not necessary for the person in charge to work alone, it is possible to employ other people. The other examples given are examples of partnerships in which there are at least two owners. In that case, the responsibility is divided.
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In was invented until 1890's but became a hit in 1904
A. to give people their natural rights
The meaning of this quote "A leader is best when people barely know he exists; when his work is done, his aim fulfilled, they will say; we did it ourselves" means if the leader is unknown to many people once he has finished or achieved a remarkable goal other people (such as Laozi) can steal the glory and be remembered for something they didn't do.