Which of the following lines from John Muir's "The Calypso Borealis" shows an example of dialect?

A. It seemed the most spiritual of all the flower people I had ever met.

B. "I wish you would write me, say once a year, so I may keep you in sight."

C. Storms, thunderclouds, winds in the woods - were welcomed as friends.

D. "Where ha ye come fra? The swamp, that awfu' swamp."