【单选题】

The passage supplies information for answering all of the following questionsEXCEPT

A、How is the law of constancy linked to the law of abstraction
B、What is the physiological process by which the brain’s tends to form abstractions
C、Does the process of forming abstractions ever go beyond its physiological processes
D、What artistic goal led Picasso andBraque to adapt their work’s sense of perspective
E、What effect, positive or negative, does abstraction often have upon the artistic individual