Brennan and Jaworski do a good job of refuting the Marxist argument that wage labor is exploitative. They leave open the option, however, that labor can be exploitative under certain conditions. What are some of the ways that wage labor can exploitative? You might discuss, for example, how old workers must be, how much they must be paid, how many hours they can reasonably be worked, what benefits they must be guaranteed, what working conditions are acceptable, etc. (You needn't address all of these things; this is just intended to give you a sense of some of the topics you could choose to discuss.)