Within the group listed below, who is the least credible in expertise?

Issue: The Surgical Practices Committee of Grantville Hospital has documented an unusually high number of problems in connection with tonsillectomies performed by a Dr. Choker. The committee is reviewing his surgical practices. Those present during a tonsillectomy are

+rep. good trader and nice person

hi bud

+rep good trader trader

+rep gets right to the point

+rep nice trader