Respuesta :
The answer would definitely have to be pestilent, as it means "destructive to life; deadly" and death would be very morbid or sad.
Answer: C) Pestilent.
Explanation: the denotation of a word is its literal meaning, the definition that we can find in a dictionary, a word can have several denotations (or definitions). Based on the given excerpt from John Snow's "On the Mode of Communication of Cholera" the meaning of the word "morbid" is "pestilent" which definition is something destructive to life or deadly, so the correct answer is option C.