I think the answer is A, to serve in religious and political rituals.
Answer:
limb was on a quest to understand exactly what was happening in the brain while he was using the instinctual thought process in his own brain. so after studying several musicians, he was able to show that the area of the brain that is connected to observation and self-monitoring is activated when musicians are using their brain to improvise. his study also showed that the area of the brain connected with self-expression became extremely active when being creative in instrument play.
Explanation:
GOUACHE is watercolor that has been made opaque by adding inert white pigment to it.
Further expounding this, it is commonly diluted with water before being applied to paper. However, Gouache is opaque in its natural state. It becomes translucent when a larger amount of water is used to dilute the paint.
Body colour is the use of opaque colours for highlights or dense flat areas and is a technique which has been used in water colour for centuries.