An ode<span> is basically written with enthusiasm and excitement about a person or thing. An </span>elegy<span> is generally sad and morose and is usually written to mourn the dead. 2nd</span>Difference<span>: </span>Odes<span> are usually longer than </span>Elegies<span>.</span>
3rd One. I recently read an article on this so I think its 3.