45. According to the passage, what is the major difference between IB 1.0 and IB 2.0? (A)IB 1.0 valued political freedom; IB 2.0 promotes creative living. (B)IB 1.0 sold books published locally; IB 2.0 imports foreign books. (C)IB 1.0 started in small towns; IB 2.0 makes businesses grow in big cities. (D)IB 1.0 focused on operational costs; IB 2.0 centers on local cuisine development.