Based on the information in Paragraph 5 and Paragraph 6, what can be inferred about the French academies？
A. They were initially operated by successful artists and teachers from Italy.
B. They eventually began encouraging artists to be more radical and creative.
C. They dominated the European art world in the period after the Renaissance.
D. They played a pivotal role in opening up the art world to the general public.
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What happens when there is a reduction of light during the winter months？
A decrease in melatonin may cause a chemical imbalance.
B. The pineal gland begins functioning to compensate.
C. The retina of the eye opens to receive more light.
D. The mental processes in the brain are slower.
According to Paragraph 1, guilds in the Late Middle Ages included a system that allowed members to
A. begin as master craftspeople if they had enough skill.
B. progress steadily up the hierarchy in their field.
C. practice more than one craft at a time.
D. exchange goods and services with other craftsmen.
According to the discussion, what reason does the man give for rejecting string theory？
A. There may have been errors in the mathematical calculations.
B. Strings have not been observed in a laboratory.
C. String theory does not prove the theory of everything.
D. The experiments were not performed correctly.
The word its in the passage refers to
A. Catastrophism.
B. planet.
C. England.
D. theory.
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