Answer:
Option a. The euphemisms "just wasn't my thing" implies that the narrator wants to disguise his or her negative opinion.
Step-by-step explanation:
An euphemism is defined as a mild or indirect word or phrase used to substitute a negative or harmful one in order to avoid conflict or hurting the person who will receive it. The narrator utilizes the euphemism of "just wasn't my thing" to decline the offer made by her/his host of a glass of expired milk, without sounding rude or unappreciative.