The correct answer is C. The smell of fish filled the place
Step-by-step explanation:
In language, the connotation refers to the ideas, images, thoughts about a word that are created by speaker and different from the denotative or dictionary meaning. Because of this, words that are synonyms in dictionaries might have a different connotation, which means words can have a negative, neutral or positive connotation.
In the case of the sentences presented all of them include a word that refers to the odor of fish; however, in the case of stench, reek and malodor all this imply a disgusting smell and therefore have a negative connotation. Bur in the case of "The smell of fish filled the place" the word "smell" is mainly neutral as it does not imply the smell was pleasant or unpleasant but just that the fish had an odor.