Some Researchers Use the Terms Sex Differences and Gender Differences

Some researchers use the terms sex differences and gender differences interchangeably;

A) others use gender to refer to the social and sex to refer to the biological aspects of these differences.
B) others use gender to refer to the biological and sex to refer to the genetic aspects of these differences.
C) others fail to make these distinctions, arguing for androgyny at all levels.
D) these researchers have become dominant, and now almost all researchers believe that this distinction is not important.