Which of the Following Is Not a Characteristic of Wireless

Which of the following is not a characteristic of wireless device software development?

A) Developing software for wireless devices had been challenging because there was no widely accepted standard for wireless devices.
B) Software applications have to be customized for each type of device with which the application communicates.
C) Different CPUs,operating systems,storage media,and mobile platform environments create time-consuming porting and testing issues.
D) Supporting different displays is simple because of the convergence of applications.