Read the line from "84" by Rabindranath Tagore.In the joy of your heart may you feel the living joy that sang one spring morning, sending its glad voice across an hundred years.

The line gives joy a human-like ability to sing and send its voice across a hundred years, which is personification. This suggests that happiness from the past can continue to be felt long afterward. Choice C, “The personification suggests that past happiness can last a long time,” matches this idea.

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