Because Research Has, Historically, Not Included Sufficient Numbers of Minority

Because research has, historically, not included sufficient numbers of minority group members and women, the National Institutes of Health established a policy requiring the participation of women or minority group members in all research it funded, unless

A) some clear and compelling rationale exists for not doing so.
B) women and minority group members have been included in previous research.
C) the researcher has no particular interest in women or minority group members.
D) the theory underlying the research suggests there should be no differences related to race or sex.