The word "On the other hand", should not be used to summarize. Therefore, Option D is the correct statement as it is throwing light on some new information that is being used for comparison.
A transition or linking phrase is a phrase or word that suggests the connection among paragraphs or sections of textual content or speech.
Transitions offer more concord via way of means of making it greater specific or signaling how thoughts relate to one another.
Therefore, Option D is the correct statement as it is throwing light on some new information that is being used for comparison.
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