参考答案：B

解析：[分析] 细节题型。 根据开篇第一句Social control refers to social processes...by which people are taught, persuaded, or forced to conform to norms．(社会约束就是教育、劝导、强迫人们服从社会准则的过程)可得知答案。选项B中enforce是强迫人服从(法律)，因此，forced to conform to norms等于norms are enforced。