: Which statement best expresses the central idea of the text?A. While humans were responsible for spreading plague in the past, it is largely rate that is responsible for plague outbreaks today. B.The Black Death could have easily been prevented if humans had made a greater effort to keep black rats and their fleas out of their homes. C.It is likely that human fleas and unclean living conditions were the most responsible for the spread of the Black Death, rather than flea-carrying rats. D.The Black Death was spread quickly by humans because they didn’t understand that the disease was transmitted through rats