Which of the following most logically completes the argument given? A. relatively few of the biologists already employed by the space program have ever held university positions B. there are more research biologists in industry than at universities C. biologists are not the only scientists interested in research that could be furthered by the opportunity to conduct experiments in space D. the space program employs only a small percentage of the research biologists employed by the government E. much of the biological research currently funded by the government's space program is concerned with the biological effects of a weightless environment