challenge: According to Ruth Abbey's book 'The Return of Feminist Liberalism', which of the following feminists are examined for their views on the compatibility of feminism and liberalism?
  
  A. Martha Nussbaum, Betty Friedan, and Simone de Beauvoir
  B. Martha Nussbaum, Susan Moller Okin, and Jean Hampton
  C. Gloria Steinem, Angela Davis, and bell hooks
  D. Judith Butler, Germaine Greer, and Camille Paglia
  Answer: 