The eye witness’s writing is a primary source, and therefore more reliable than a play written about it, which might be changed to make the play more interesting
An important scientist at the time, besides, those who were mentioned was Copernicus - A.
Spartacus was just a slave general in the Roman republic.
Rousseau was a philosopher.
Plato was a philosopher as well.
The correct answer for that reason is Copernicus, he was an astronomer and a major figure at the time.
The answer is B that’s is the correct answer
