The correct answer is: [C]:
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" {I heard Charlie say that he was "head over heels in love."} " .
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I honestly think the answer is D.
Humans need to eat and drink in order to survive, therefore it against natural law to deprive oneself of food and water, as natural law says that species must survive.
You didn’t give any options. Therefore, I can not answer. You said “which choice” but did not not give any choices.
I'm not sure since I can't read the passage, but I think D is least important.