I think it is the Microscope. Robert Hooke was a scientist who came up with the law of elasticity, the Hooke's law as well his pioneering work using the microscope to document observations of a variety of samples in his book. Hook published a book Micrographia, an accurate and detailed record of his observations through his microscope.
The Mongols. The modern Mongols, who are an Inner Asian rather than a Siberian people, are the descendants of the famed Empire Builder Chingiz (Genghis) Khan. As such, they have played a more prominent role in world history than any other people of North or Middle Asia.
Answer:
C the answer is definitely C
