It can be inferred that the author of the passage would probably agree with which of the following claims about the boast referred to in the highlighted sentence? A. It is based on a mistaken estimation of the number of AFL workers who were allowed to work a five-day, 40-hour week in 1928. B. It could create a mistaken impression regarding the number of unions obtaining a five-day, 40-hour week during the 1920s. C. It exaggerates the extent of the increase between 1926 and 1928 in AFL members working a five-day, 40-hour week. D. It overestimates the bargaining prowess of the AFL building trades' unions during the 1920s. E. It is based on an overestimation of the number of union members in the AFL in 1928.