A) to test whether smoking has a positive effect on the mental capacity of smokers
B) to show how smoking damages peoples mental capacity
C) to prove that smoking affects peoples regular performance
D) to find out whether smoking helps peoples short-term memory
22. George Spilichs experiment was conducted in such a way as to _________.
A) compel the subjects to separate major information from minor details
B) put the subjects through increasingly complex tests
C) check the effectiveness of nicotine on smokers
D) register the prompt responses of the subjects
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