The Reason That Malware Developers Are Beginning to Target Mobile

The reason that malware developers are beginning to target mobile devices is:

A) Because available memory is much smaller and the operating system is much less sophisticated on mobile devices, it is much easier to develop malicious code.
B) The malware market has become very crowded and developers are looking for new avenues.
C) Since the coding is much simpler on mobile devices, many new programmers are trying at this particular platform.
D) Since mobile devices are used more and more for online banking and making purchases, they have become prime targets for computer criminals.