What Does the Bem Sex Role Inventory Intend to Measure

What does the Bem Sex Role Inventory intend to measure?

A) People's self-identified gender, rather than their biological sex
B) The degree to which a culture has gender equality, measured by the extent to which women participate in public and economic spheres
C) The degree to which people possess stereotypically masculine, feminine, or androgynous characteristics, regardless of their gender
D) The degree to which people will be successful in relationships and careers due to their ability to conform to gender stereotypes about emotion expression