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Either C or D.
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Answer: A. develop a design for conservation.
Explanation: Conservation is a discipline that aims to provide artwork, documents, artifacts, etc. And because the other answers would not make sense.
The right answer for the question that is being asked and shown above is that: "both." The <span>periods that did a poetic expression in music become more prevalent than formerly are the periods of Romanticism and Classicism.</span>
