Which sentence contains an example of verbal irony?
"Would you give me a hand moving these boxes upstairs?" Dad asked politely.
Seeing the untouched bowls of chili, the chef laughed. "One of my biggest hits!"
"I guess this is going to be a group effort," Han said, looking at the full sign-up sheet.
When I stepped outside, the cold air hit me like a ton of bricks—I quickly jumped back inside.