There is no Frigate like a book
To take us Lands away
Nor any Coursers like a Page
Of prancing Poetry-
This Traverse may the poorest take
Without oppress of Toll-
How frugal is the Chariot
That bears the Human soul

Which best explains the function of the dashes that end lines 4 and 6?

A. They are meant to confuse readers

B.They giver her writing its humor

C. They are very ordinary and similar to other poets' work

D. They help readers know when to slow down their reading