Answer: D is correct.
Explanation: laws of reason are mere fictions. Philosophy of rights is dedicated to this issue but in its very fundaments there are fundamental questions that are still not answered (becase both laws of nature and laws of reason are products of human intellect, i.e. they cannot be experimentally proved. In spite of its fictitious nature, theese laws became one of the pillars of Enlightenment. French philophers, for example, attempted to ground ethics on mathematics which proved to be inviable.
The more productive workers are, it might increase their earnings.
Answer:
The answer is mass production, interchangeable parts, and mechanization revolutionized American industries.
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David Livingstone was against the slave trade, suggesting missions and new commerce routes with Africa.
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