निम्नलिखित मानवशास्त्रियों में से किसने बहुपति प्रथा (polyandry) को 'एक नृवंशविज्ञान संबंधी जिज्ञासा' (an ethnographic curiosity) कहा था?

The custom or practice in which a man marries the sister of his deceased or living wife is known as:

Exogamy is a rule of marriage which:

Marriage requires both spouses to personally and psychologically adjust to which type of lifestyle?