I would say a c and d hope this helps
Relief is a sculptural technique where the sculpted elements remain attached to a solid background of the same material. The term relief is from the Latin verb relevo, to raise. To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background plane.
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Altificial silk, is made from natural cellulose derived from wood pulp or cotton rags
The art<span> of the </span>Renaissance<span> is characterized by realism. ... In the high </span>Renaissance<span>, from 1475 to 1525, artists including Leonardo da Vinci and Michelangelo focused on space and perspective to lend more realism to </span>art<span>.</span>
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The focal length or depth of field
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