Color, lines, shadows, structure, texture.
The correct answer is D. Ruling class. An example of this can be the Medici family who ruled Florence during the renaissance. They were the ruling class and great patrons of art, but what they commissioned for was usually something in coordination with the church even though they didn't really care about the church and wanted great art.
Bill Monroe, a mandolinist, is credited with creating the highly stylized American popular country music genre known as "bluegrass" in the late 1930s and early 1940s.
<h3>Who was Bill Monroe?</h3>
Bluegrass music was invented by American mandolinist, singer, and songwriter William Smith "Bill" Monroe. He is frequently referred to as the "Father of Bluegrass" as a result. The Blue Grass Boys, a group that Monroe's band named after the bluegrass of his native Kentucky, gave the genre its name. Together with his brothers Birch and Charlie, as well as his childhood friend and guitarist William "Old Hickory" Hardin, Monroe relocated to Indiana in 1929 to work at an oil refinery. They established the "Monroe Brothers" to perform at neighborhood dances and home parties with a friend, Larry Moore.
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The curved line is a slur connecting the notes