She exclaimed with sorrow that was a very miserable plight.

The correct answer is D. She said, “What a miserable plight it is.”

The other options are incorrect because they do not accurately reflect the tone of the sentence. Option A, “She said with sorrow, ‘What a pity it is,'” is too mild. Option B, “She said, ‘What a mystery it is,'” is too vague. Option C, “She said, ‘What a miserable sight it is,'” is too focused on the visual aspect of the situation.

The sentence is about a person who is in a very difficult situation. The person is feeling sorrow and misery, and they are expressing this through their words. The correct answer, “What a miserable plight it is,” accurately reflects the tone of the sentence and the situation that the person is in.