When you are talking to someone and you want a certain phrase you said to stand out, you emphasis your words. That is pretty much the same case here. A is incorrect because that is capturing a model of some sort, B is incorrect because that would be an equal blend of all colors together, and D is incorrect because you are not uniting the colors, you want the elements to stand out. Emphasis is achieved usually by using mostly dark colors then a splash of something such as neon pink or yellow.
By definition, the English Madrigal was the resurgence of madrigal music in England that happened during the time period of 1588 to 1627. In addition, the three forms of English madrigal includes:
Madrigal proper - mainly composed of word painting
ballet - the dance
ayre - the music is performed with our without musical accompaniment