Which scenario is an example of irony?
A. When the comedian delivered the punch line of his joke, I nearly
died laughing.
B. A tow truck sits stranded on the side of the road with a flat tire.
C. Her voice was as warm as butter melting on a hot biscuit.
D. Crystal was tired, so she took a six-hour nap.

Irony is a rhetorical device employed by writers or speakers to present a situation where contrary results of what is expected are obtained resulting in wry humour.

A tow truck is a vehicle provided with special equipment to pull damaged , illegally parked, or immovable vehicles in need of help to be either disposed of or dragged to a place where they can be repaired. It is expected to be a savior carrying immobile vehicles to their destination which is most often a repair shop.

In the given situation, the tow truck is itself not able to ply on the road and is helplessly stranded on the roadside due to a flat tyre. It is contrary to what is expected and is consequently amusing. This is an example of irony.