By mentioning the experiment in the second paragraph，the author implies that_____

[A]observation

[B]standard

[C]performance

[D]understanding

[A]upturned noses will soon be considered beautiful

[B]defects in facial features may someday be popular

[C]p]astic surgery is a well．developed industry

[D]people should be confident of their appearance

[A] exhausting

[B] tedious

[C] solitary

[D] bizarre

[A] to fight for a favorable term for the employees' health benefits

[B] to start an advertising campaign to promote sales of GM's cars

[C] to eliminate GM's old crop of cars that people don't want to buy

[D] to find a way to inspire GM employees with much confidence