Help me >///<
Highlight text formatting and punctuation marks that signal the reader to change tone.
When I had laid it on the floor
I went to blow the fire a-flame,
But something rustled on the floor,
And someone called me by my name:
It had become a glimmering girl
With apple blossom in her hair
Who called me by my name and ran
And faded through the brightening air.
—“The Song of Wandering Aengus,”
William Butler Yeats
Which punctuation marks tell the reader to pause and are present in the first half of the stanza, but not the second half?
A. commas
B. semicolons
C. periods
D. colons