Stephan hemmerling was a driver for the yellow cab company. bob was paid certain fixed expenses and abided by a variety of rules relating to the use of the cab, the hours that could be worked, and the solicitation of fares, among other things. rates were set by the state. yellow cab did not withhold taxes from bob's pay. while driving the cab, bob was injured in an accident. bob filed a claim against yellow cab in court for workers compensation benefits. on what basis might a court hold bob was an employee of yellow cab and not an independent contractor?