What the direct object in the following sentence; the schedules showed the students’ classes, sorted by time and location

1. a poem that tells a story irony 2. taking on human characteristics narrative 3. a direct comparison between two things personification 4. words that are opposite the thoughts in a speaker's mind simile 5. implied comparison introduced with "as" and "like idiom 6. one's own manner of speaking metaphor

Which best expresses the irony present in this passage?

What is the best definition of the underlined word as it is used in the sentence? a statement of wit or amusement an expression of disapproval or condemnation a sentiment of indifference or apathy an exclamation of profound admiration or esteem