Which of the following is true about the author's attitude towards the current GDP evaluation system adopted by the American government
选项：

A:It is the origin of the majority of corporate accounting seams in America.
B:It is manipulated by the government to mislead the public regarding the country's economic performances.
C:It is the most commonly used measure of a country's success in economic terms.
D:Its adoption as a guide to a nation's economic well-being is not well-grounded.