The correct answer is 'catching.' Key Points - Let us see the meaning of Contagious: - Contagious: (of an emotion, feeling, or attitude) likely to spread to and affect others. - Example: Her enthusiasm is contagious. - Let us see the meanings of the given options: - Arrogant: having or revealing an exaggerated sense of one's own importance or abilities. - Disrespectful: showing a lack of respect or courtesy; impolite. - Sarcastic: marked by or given to using irony in order to mock or convey contempt. - Catching: (of a person's emotion or mood) likely to spread to other people, contagious. - From the meanings of the given words, we can say that the word 'catching' is nearestin meaning to the underlined word 'contagious'. - Hence, the correct answer is 'catching.'