解析： 细节题。第一段前两句提到“Almost every family buys at least one copy of a newspaper every day. Some people subscribe to as many as two or three newspapers”，即“几乎每个家庭都每天至少买一份报纸。一些人订两到三份”。A选项“世界上不常见”；B选项“在美国不流行”，popular流行的；D选项“在一些家庭中已经形成了”。只有C项“在世界上是很普遍的”符合原文含义，widespread散布广的，遍及的。
