【单选题】Marjorie McMillan, head of radiology at a veterinary hospital, found out by reading a letter to the editor in her local newspaper. Pamela Goodwin, a labor-relations expert at General Motors, happened ...
A.
the discrimination of sex, race, religion and national origin
B.
the arguments over Goodwin' s case of pay discrimination
C.
what the real world we live in is like
D.
the arguments over the issue of pay discrimination against women at work