Answer:
Option (D) i.e., Parallel start up is correct option to the following question.
Explanation:
Parallel startup is also an application or software or a way of using the application of the other Operating System in others just like that the following XYZ inc. has trust on older platform but their system give them cautions for update then they use parallel set up by which they also use old software, as well as they, use the Mac's software in Windows. This strategy provides both the option of usage.