Read the following poem and answer the question that follows. "Beat! Beat! Drums!" by Walt Whitman
Beat! beat! drums!-blow! bugles! blow!
Through the windows-through doors-burst like a ruthless force,
Into the solemn church, and scatter the congregation,
Into the school where the scholar is studying,
Leave not the bridegroom quiet-no happiness must he have now with his bride,
Nor the peaceful farmer any peace, ploughing his field or gathering his grain,
So fierce you whirr and pound you drums-so shrill you bugles blow.
What literary device does the poet use in the line in bold?
1) Rhyme
O2) Imagery
3) Extended simile
4) Onomatopoeia