Daniel Works at an Electrical Equipment Manufacturing Plant

Daniel works at an electrical equipment manufacturing plant. He manages to produce eight units of equipment per day while his coworkers usually manage to produce only five per day. In this context, Daniel is the _____ among his coworkers.

A) ​roadblock
B) ​whistle blower
C) ​rate buster
D) ​bureaucrat
E) ​social loafer