Cather's My Ántonia uses realist naturalist and modernist methods Using two narrators and beginning the novel at the end of the story indicates which influence?

Using two narrators and beginning the novel at the end of the story indicate use of the modernist method.

This is an innovation influenced by modernism, which is concerned with the presentation as well as the tone of literary compositions. Realism and naturalism have no real bearing on the actual construction of a story, but rather the imagery used.