I have to say B. The rest were concepts made in Greece, by Greek philosophers, politicians, or mathematicians. An example for an advancement in math is the Pythagorean Theorem. I hope this helps!
The rods of cells move upward through the skin as a new cells form beneath them. As they move up , they’re cut off from their supply of nourishment and start to form a hard protein called keratin. This happen as the hair cells die .
It killed almost 50% of the population. They were devastated. Because there was no cure for it, they turned their faith towards God.
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Hope this helps
