Answer:
Because people did not know that yellow fever was caused by the bite of an infected mosquito, they assumed incorrectly that people could catch the disease through touch. To help control the disease, letters were cleaned with vinegar before being sent. This did not work, because it was a false cause-and-effect relationship.
Alliteration is the repetition of a word of sound within the same phrase, such as "Ulalume"; Asonance is a vowel coincidence in the termination of two words, such as "it was night in the lonesome october
of my most immemorial year"; the consonance is an unmotivated use of words that are very close for each other, such as " we noted not the dim lake of Auber- (though once we had journeyed down here)"; and the poetic image describes something real through words, such as "these are days when my heart was volcanic", which explains his heart beats too strong.
Although both B and C would support the argument, I believe the correct answer in this case would be A.
Yeah me too..........It has something to do with fractions