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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The answer is B, The relative pronoun is that; it functions as part of the adverb clause.
Hayes Davis wrote this excellent poem regarding driving where the two main characters of the poem are the boy and his father. The father teaches the boy to drive. Explanation: The speaker talks about the confidence that the father has in his son and how on empty roads he lets him drive