Which term refers to careful attention to detail?

The term that refers to careful attention to detail is "fastidious." This word describes someone who pays meticulous attention to cleanliness, accuracy, and precision, often being very particular about the small details in work, appearance, or behavior. A fastidious person often ensures that everything is just right before considering a task complete, which showcases their diligence and commitment to quality.

Other terms in the options do not carry this meaning. "Feral" pertains to something wild or untamed, typically used to describe animals that have returned to a wild state. "Fatuous" refers to being silly or foolish, often in a way that shows a lack of intelligence or awareness. "Expunge" means to erase or remove completely, often used in the context of eliminating records or memories. None of these words convey the sense of detail-oriented care that "fastidious" does.