Commuters in New York Often Install Radio Frequency Identification (RFID)

Commuters in New York often install radio frequency identification (RFID) devices on their cars that can be read automatically as they approach a toll booth. This saves time, improves traffic flow, and means drivers don't need exact change. Also, New York authorities can manage traffic flow by charging different toll amounts for different times, such as charging a higher toll for morning and afternoon rush hour periods. This pricing strategy is

A) price gouging.
B) off-peak pricing.
C) flow management pricing.
D) price differentiation.
E) idle production pricing.