Which of the Following Describes a Global RFID Challenge

Multiple Choice

Which of the following describes a global RFID challenge?

A) Foreign firms will not use global RFID since the field communication standards tend to vary from country to country.
B) Globally, the RFID industry does not have its own UHF spectrum allocation.
C) RFID tags are passive in undeveloped countries.
D) RFID can track outbound shipments only.
E) All of the above.