Which statement provides the most logical explanation of why union workers who had been blacklisted following the Pullman Strike found it almost impossible to find another job? A. Blacklisted workers could be charged with criminal acts if they attempted to find other jobs. B. The majority of blacklisted workers had been injured during the strike and were unable to work. C. The majority of blacklisted workers had criminal records that disqualified them from most employers’ hiring criteria. D. Blacklisted workers were viewed as troublesome, untrustworthy, and even dangerous by other employers
"D. Blacklisted workers were viewed as troublesome, untrustworthy, and even dangerous by other employers" is the best option from the list, since the "blacklist" in this sense "flagged" them for future employment.