Although the number of undergraduates studying engineering

Although the number of undergraduates studying engineering has grown greatly over the last five years, there may be a shortage of engineering teachers in the near future because the number of people receiving PhDs in engineering, those most likely to teach, has not been increasing. This results because the high salaries offered to engineers without advanced degrees reduce the incentive to pursue postgraduate studies. Therefore, businesses will have to recognize that their long-term interests would best be served by reducing salaries for those without advanced degrees.

Which of the followiing, if true, would most weaken the above argument?

A) Enrolment in the sciences has grown over the last five years.
B) Fewer than half of the people who have received PhDs in engineering teach full-time.
C) Businesses pay high salaries to engineers with advanced degrees.
D) The increases in engineering enrolment are due to the high salaries paid by businesses.
E) Many university programmes are funded by businesses interested in engineering research.