I believe that the appropriate answers from the options above are the first and third ones. The aspects of "Aunt Imogen" that illustrate American Modernism include its emphasis on internal conflicts along with themes of love and nature. I hope this addresses your query. Enjoy your day.
American modernism emerged in the early 20th century, greatly influenced by Freud's ideas on the subconscious, which shifted the focus towards inner struggles, portraying characters as deeply troubled both internally and externally.