Read the following lines from a poem by Paul Laurence Dunbar and answer the question that follows.
Sympathy
(1) I know why the caged bird beats his wing
(2) Till its blood is red on the cruel bars;
(3) For he must fly back to his perch and cling
(4) When he fain would be on the bough a-swing;
Which line shows the use of dialect?
Line 4
Line 2
Line 3
Line 1