Which of the Following Best Captures the Meaning of the Term

Which of the following best captures the meaning of the term, glass ceiling?

A) structural, yet subtle barriers in corporate environments which inhibit the rise of talented women to positions of leadership
B) unspoken decision by corporate leadership that women should not be encouraged to advance beyond middle management levels
C) inadequate networking opportunities which result in a lack of an "old girl's network" to mirror that of men
D) the lack of desire among women to pursue jobs with extreme levels of responsibility and authority
E) none of the above