Feminist ethical theory has led to rethinking issues of gender identity and sexual orientation for ...

Feminist ethical theory has led to rethinking issues of gender identity and sexual
  orientation for all the following reasons except:

a. mothers are invariably concerned about their children whatever their gender or
  sexual orientation.
  b. gender identity is inextricably bound up with what it means to be a woman in
  our society.
  c. discrimination against lesbians, gays and transgendered people has much in
  common with the structures of domination against women.
  d. the question of the meaning of natural has required re-examination when
  addressing gender roles and identities.