The sentence that correctly describes an ode is that It's written in homage to a person, idea, or an object. For example, John Keats wrote Ode to Psyche, in honor of a person, and Ode on Melancholy, in honor of an idea, and Ode on a Grecian Urn, in honor of an object. Odes exist since the ancient times, so they aren't just medieval poems. Heroic expoits are described in epics, not odes. Tragic incidents are written in elegies.
