Each of the Following Is a Limitation of SMS Codes

Each of the following is a limitation of SMS codes EXCEPT:

A) Marketers are concerned with not having the proper metrics with which to measure success.
B) There is a time delay for registration with the Canadian Wireless Telecommunications Association to protect consumers against spam.
C) Cell phone carriers are not all fully able to work with each type of code.
D) The relatively low penetration of smart phones in Canada does not ensure that the use of SMS advertising will deliver a favourable ROI to advertisers.