(单选题)12: Which of the following statement is true?
A: According to a 1999 study, women and minority doctoral students are more likely than white male doctoral students to want to be faculty members.
B: Regrettably, without this kind of internal pressure, the professoriate is likely to remain relatively homogeneous even as the student well served by this trend.
C: Women make up only one-quarter of all full professors, earn considerably less than men at every rank and hold a disproportionately high number of part-time and nontenure track positions.
D: Numerous studies, including our own, have shown that women and minority professors do not experience social isolation any more.
