Final answer:
The director of the Rexx Pharmaceutical Company argues that the government should subsidize the development costs for new vaccines due to lower sales potential compared to chronic medicines for illnesses.
Step-by-step explanation:
The director of the Rexx Pharmaceutical Company argues that the development costs for new vaccines should be subsidized by the government, as selling vaccines may be less profitable compared to other pharmaceutical products. The director highlights that vaccine sales are lower because each vaccine is administered once to a patient, whereas medicines for chronic illnesses are administered multiple times. The argument is that this lower sales potential makes it less attractive for pharmaceutical companies to invest in vaccine development without government support.