You can spread costs over a longer period of time
It can lead you into debt
Because of interest, you end up paying more than you would have with cash
You don't have to wait to buy something
Europeans were susceptible to plague because the health standards in European cities were very bad - absymal in reality. There weren't any health standards to be honest. And where health standards are lacking, it's more likely that the plague will spread, which also happened in the case of Europe.
Answer:
B is the answer ok mate hope it helped
D is the most logical choice.