The correct answer is B. Gender
Explanation:
"Gender" and "Sex" are both terms used to classify human beings according to sexuality; however, these two terms are not interchangeable as its essence or definition is different. To begin with, sex refers to the biological aspects of human beings that made them women or men or female or males determined by differences in genes and genitalia. On the other hand, gender refers to the role and identity of individuals that made society and individuals be classified into masculine or feminine; although many other genders have emerged in the last decades. Considering this, it can be concluded, the terms "masculine" and "feminine" refer only to gender as "masculine" and "feminine" do not describe biological aspects of people but roles, and identity of people.
