Riya has recently been denied a promotion. This is the third time she has been turned down for promotion despite excellent performance reviews. Her manager assures her that she was qualified for the promotion but that "that's just the way things go." After this last disappointment, Riya took a good hard look at her company. She found that only two minority candidates have been promoted to upper management positions. Riya appears to have
a. A diversity-oriented employer
b. A lack of communication skills
c. Hit the glass ceiling
d. Reached her peak
e. To brush up on her skills