Teenage children began to assert their independence and this can lead to good deal of ______ in the family.

A、 controversy
B、 friction
C、 restriction
D、 contradiction

【正确答案】 B

【答案解析】 名词词义辨析。controversy“争论，辩论”；friction“摩擦”；restriction“限制，约束”；contradiction“矛盾，不一致”。句中提及的是父母和子女之间的矛盾和摩擦，friction侧重双方的不和谐，contradiction强调的是两个观点或概念的矛盾。结合语境，friction更合适，故答案为B。