I believe the last answer would be the best option
Answer:
D.Cather is critical of Chopin’s choice of themes.
Explanation:
Upon releasing her novel "The Awakening", in the end of 19th century, Kate Chopin was heavily criticized.
One of those critics was Willa Cather. She openly compared the protagonist of the novel, Edna, to Flaubert's Madame Bovary, in order to express unnecessary repetition of themes in Chopin's novel ("There was, indeed, no need that a second “Madame Bovary” should be written, but an author’s choice of themes is frequently as inexplicable as his choice of a wife").
However, besides criticizing choice of themes, Cather praises Chopin's writing style ("I shall not attempt to say why Miss Chopin has devoted so exquisite and sensitive, well-governed a style to so trite and sordid a theme").
She abandons people when they least expect it.
In the story "The Red Bow" by George Saunders, we learn of a town that gets together in order to kill a massive number of dogs due to the death of a girl who was bitten by a rabid dog.
The man who organizes such killing is Uncle Matt. Despite the fact that the measures he suggests are extreme, many of the people of the town support Uncle Matt's decision. One of the main reasons why this happens is because Uncle Matt is able to appeal to the people's emotions. He does this through the use of a red bow as a symbol for the life that was lost. He also achieves this by highlighting the importance of community and unity in the life of the town.
There are many examples of real-life situations in which grief or strong emotions cause people to take extreme measures. An example is the terrorist group IRA that developed in Ireland. This group took extreme measures in order to achieve their goals, including assassinations and bombs. Their actions were caused by the anger and grief they felt towards the English domination of Ireland.
Here, you would need to add the preposition "in."
The sentence should read: My elder sister is really interested in the problems of the environment.
Other prepositions would not make sense and could confuse the reader as to the intended meaning.