The answer is D) rhythm.
During the Ars Antiqua, music theory made great strides. One of the most important innovations from this time was the devlopment of a notation, or written representation in sheet music, of rhythm. Rhythm is naturally a very important element of music, and being able to represent the rhythm of a song in written form made it much easier to play it accurately without having heard it.
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Answer:
Water color paint, show card paint, brushes, crayons, pencils, clay, lettering pens, weaving materials, papier mache, chalk, paper of different sizes, soap or wood, beaver board, linoleum, dyes, wool for weaving or stitchery, sheet cork.
Explanation:
:3