What is the Hornbostel-Sachs classification system, and how is it organized? Provide examples of instruments for each category.

A convincing case for the depiction of Eve's pregnancy in Jan van Eyck's The Ghent Altarpiece is bolstered by the symbolic contrast between

a) her figure and a shriveled piece of fruit. b) her nudity and the clothed male figures above her. c) the lighter tone of her body versus the surrounding darkness. d) the rounded arch above Eve's head and her rounded form.

Thai artisans working under royal patronage created ________ images of Buddha, which evoked the ascetic simplicity of Theravada Buddhism

A. wood B. bronze C. marble D. granite