In Mr. Flood's Party, the quote that best describes the theme of loneliness is: "Over the hill between the town below/And the forsaken upland hermitage."
A literary theme is a central subject that a poem, film, play, or literature discusses.
The quote that best demonstrates the theme of loneliness is the one that describes the upland hermitage as forsaken. It connotes the idea of being abandoned.
So, option B is right.
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