Which Statement Best Describes the Historical Significance of the Committee

Which statement best describes the historical significance of the Committee for Industrial Organization (CIO) ?

A) For the first time ever, the labor movement had gained a permanent place in the nation's mass-production industries.
B) Although the growth of the CIO was welcome, it made little difference in an economy that would soon see a decline in manufacturing.
C) The triumph of the CIO over the AFL meant a complete reversal of craft unions on race and gender issues.
D) The emergence of the CIO triggered many years of infighting between the AFL and CIO that at times took on criminal proportions.