Final answer:
The division of labor based on gender is explained by feminist theory, which addresses the perpetuation of gender roles and inequalities within patriarchal systems.
Step-by-step explanation:
The division of labor based on gender, especially when considering work proximity and shared skills, is best explained by feminist theory. Feminist theory is a subset of conflict theory, which investigates the ways in which societal structures perpetuate disparities and power dynamics. According to feminist theory, gender roles and inequalities are maintained through societal norms, which often value men's contributions over those of women. This theory looks at how patriarchal systems establish male dominance and create institutional barriers that result in women's viewpoints being marginalized or silenced.