Topic: Antonyms, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The term "deviant" refers to behavior or characteristics that deviate from the norm or expected standards within a particular context, often carrying connotations of being morally wrong or socially unacceptable. Antonyms are words that have opposite meanings.

In this case, the word "regular" serves as an appropriate antonym to "deviant." "Regular" denotes behavior, practices, or characteristics that conform to societal norms or standards. It suggests normalcy, consistency, and adherence to accepted patterns, contrasting sharply with the notion of deviation.

The other options—A) Bent, B) Devious, and D) Atypical—do not provide an effective antithesis to "deviant." "Bent" suggests a distortion of some kind, "devious" implies cunningness and trickery, and "atypical" indicates something unusual or not typical, which aligns with the notion of being deviant. Thus, "regular" is the clear choice, as it embodies the concept of conformity and normality, making it the most fitting antonym to "deviant."