Final answer:
Saki uses irony in his literature to create satire, which uses humor to criticize human follies. Examples such as the significance given to pigs over flowers or Bertha's unexpected emotions can be considered ironic.
Step-by-step explanation:
The question primarily deals with identifying examples of irony used by the author Saki to create satire in a literary context. Satire is a technique employed by authors to use humor, exaggeration, or ridicule to expose human follies or societal issues. In the case of Saki, irony might be used to highlight the absurdities within a particular situation in a way that prompts reflection and, ultimately, understanding and criticism of the subject at hand.
For instance, if the pigs ate the flowers, and this action was more important than any human concern, it would be a satirical way of emphasizing the trivial priorities of certain characters. Options that involve personal emotions or incongruences, like Bertha being sad not to be tempted or feeling lonely, might also involve irony, as her reactions are unexpected and could highlight the absurdities of her situation within a satirical narrative.