Question

verbal irony - a literary device in which the speakers intended meaning is different from, and often opposite to, the literal meaning of the words used
situational irony - a literary device in which the outcome of a situation is different from what was anticipated, resulting in a surprising or unexpected twist
dramatic irony - a literary device in which the audience possesses knowledge unknown to the characters, creating tension, humor, or anticipation
what is ironic about jims gift for della?
he bought her combs for hair she no longer has.
he bought her chops, but she has become a vegetarian.
he bought her combs, but she wanted a pair of mittens.

Explanation:

This is an example of situational irony. Jim bought combs for Della, but Della had cut off her hair to buy him a gift, so she no longer has the hair to use the combs, which is an unexpected outcome.

Answer:

He bought her combs for hair she no longer has.