What is an example of situational irony in the excerpt? "‘Her great tragedy happened just three years ago,’ said the child; ‘that would be since your sister’s time. ’" "‘Her tragedy?’ asked Framton; somehow in this restful country spot tragedies seemed out of place. " "She rattled on cheerfully about the shooting and the scarcity of birds, and the prospects for duck in the winter. To Framton it was all purely horrible. " "‘I hope you don’t mind the open window,’ said Mrs. Sappleton briskly; ‘my husband and brothers will be home directly from shooting, and they always come in this way. ’".