The best way to describe the sentence " In 1984, Byron Lichtenberg, who is a biomedical engineer became a member of a spacecraft crew." is complex. The correct answer is C, complex.
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Volta can be used in reference to any type of poetry, but is most frequently used in regard to sonnets. It comes from Italian, and quite literally means 'turn', which is why you might hear it referred to as 'the turn' or the 'turning point'.
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