Which reasons would be the most effective? Select two options.

Dylan has been internationally acclaimed for more than half a century.
Dylan is first and foremost a poet, and poetry is often accompanied by music.
The effect of Dylan's music on his listeners and fans has not always been positive.
It has been almost a quarter century since an American won the Nobel Prize in Literature.
True poetry does not require music to be effective, but Dylan's lyrics work only when put to music.