Over a five-year period, whose professional expertise would you judge to be the least trustworthy (valid and reliable)? A. A car salesperson specializing in selling secondhand cars B. An eye surgeon specializing in eye laser surgery C. A baker specializing in making sourdough bread D. A management consultant specializing in culture change

Over a five-year period, whose professional expertise would you judge to be the least trustworthy (valid and reliable)? A. A car salesperson specializing in selling secondhand cars B. An eye surgeon specializing in eye laser surgery C. A baker specializing in making sourdough bread D. A management consultant specializing in culture change