The correct answer is C) the alignment of the planets caused the epidemic.
According to the Paris Medical Faculty, what contributed to the pandemic was the alignment of the planets.
Indeed, the Paris Medical Faculty Report of 1348 is trying to explain to people the causes of the Black death epidemy when they write that " the main cause of this pestilence was and is the configuration of the heavens. In 1345, at 1:00 in the afternoon of March 20th, there was major conjunction of three planets in the constellation of Aquarius. This conjunction, along with others like it and the eclipse caused a deadly corruption of the air around us. This signifies mortality and famine,..."
In those years, science was not as advanced as it is now and the influence of religion and superstitious made them believe in supernatural things that affected humanity. At that time. that was the only valid explanation they had. And people believed it.
