Final answer:
A partnership marriage is defined by equal legal rights and companionship, emphasizing equality and mutual support in the relationship.
Step-by-step explanation:
A partnership marriage is best defined by the statement: Women and men have equal legal rights and obligations and base their relationship on companionship. This conceptualization of marriage emphasizes equality and mutual support between partners, rather than adhering strictly to traditional gender roles or merely fulfilling legal criteria. Partnership marriages focus on creating a balanced and reciprocal relationship where both partners contribute to various aspects of their lives together, including emotional support, financial responsibilities, and household tasks, based on their abilities and preferences rather than predefined roles.