Select the option that is nearest in meaning to the underlined word. Her smile was contagious.

Step-by-step solution

Contagious: (of an emotion, feeling, or attitude) likely to spread to and affect others. Catching: (of a person's emotion or mood) likely to spread to other people. Sarcastic: marked by or given to using irony in order to mock or convey contempt. Arrogant: having or revealing an exaggerated sense of one's own importance or abilities. Disrespectful: showing a lack of respect or courtesy; impolite. Here, 'catching' is thus the nearest in meaning with the given word 'contagious.