Which sentence best states the main idea of this section of the chapter ?

A. Salt and rust are corrosives that have damaging effects on a city's infrastructure.

Explanation: It is clearly stated in the paragraph that during the winter times, salt eats the steel on the roadways once its done melting the ice and also the salty waste is pushed into the catch basins, requiring people from maintenance having to go and clean them.

the correct answer is d. in john paston's letter written friday, 14, 1476, he expresses his fear that he may have to go to war.

indeed, although the black death was ravaging europe, the pastons were relatively safe from it due to their social status as they were part of the landed gentry. it is clear that the vast majority of the victims of the pandemic were the poor. the reason why he is weary of having to go to war is because at the particular time england was also devastated by the war of the roses and paston, being a courtesan was inevitably involved.