Which is an example of a pun?

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4 points
"Feather of lead, bright smoke, cold fire"
"You have dancing shoes with nimble soles. I have a soul of lead"
"It is the east, and Juliet is the sun."
"The grey-eyed morn smiles on the frowning night."

"You have dancing shoes with nimble soles. I have a soul of lead"