Answer: D. cultural norm
Explanation: Almost every human behaviour, from shopping to marriage to expressions of feelings, is learned. In Canada, people tend to view marriage as a choice between two people, based on mutual feelings of love. In other nations and in other times, marriages have been arranged through an intricate process of interviews and negotiations between entire families, or in other cases, through a direct system such as a “mail order bride.” To someone raised in Winnipeg, the marriage customs of a family from Nigeria may seem strange, or even wrong. Conversely, someone from a traditional Kolkata family might be perplexed with the idea of romantic love as the foundation for the lifelong commitment of marriage. In other words, the way in which people view marriage depends largely on what they have been taught.