The answer is going to be A
After Alexander death, Egypt was ruled by : B. Ptolemy
He was a famous philosopher, mathematician , and astronomer from Egypt. During Alexander era, Ptolemy was the Great General of Macedonian army
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The American Civil War was not inevitable and it could have been easily avoided. But, once it crossed a certain point, there was no turning back. The Civil War was fought in the years 1861-1865 over the issue of slavery.
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Using computer models for modelling biological we can get information on whether certain mathematical models from one animal will hold true also for another animal. This is very important because it allows for the creation of generalized models that we can use to see whether certain qualities and characteristics are true for more than one species and actually represent a general truth about biological organisms.
